diff --git a/config/config.json b/config/config.json
index d87a2c3..53374cd 100644
--- a/config/config.json
+++ b/config/config.json
@@ -33,7 +33,9 @@
     "logLevel": 3,
 
     /* Maximum filesize to allow when uploading */
-    "maxUploadSize": 536870912  // 512MiB
+    "maxUploadSize": 536870912,  // 512MiB
 
+    /* false-> Download A1 models; true -> Download A2 models */
+    "tone3000A2Models": true
 
 }
\ No newline at end of file
diff --git a/src/PiPedalConfiguration.cpp b/src/PiPedalConfiguration.cpp
index f333d95..6beaecf 100644
--- a/src/PiPedalConfiguration.cpp
+++ b/src/PiPedalConfiguration.cpp
@@ -101,6 +101,7 @@ JSON_MAP_REFERENCE(PiPedalConfiguration, threads)
 JSON_MAP_REFERENCE(PiPedalConfiguration, logLevel)
 JSON_MAP_REFERENCE(PiPedalConfiguration, logHttpRequests)
 JSON_MAP_REFERENCE(PiPedalConfiguration, maxUploadSize)
+JSON_MAP_REFERENCE(PiPedalConfiguration, tone3000A2Models)
 JSON_MAP_REFERENCE(PiPedalConfiguration, accessPointGateway)
 JSON_MAP_REFERENCE(PiPedalConfiguration, accessPointServerAddress)
 JSON_MAP_REFERENCE(PiPedalConfiguration, isVst3Enabled)
diff --git a/src/PiPedalConfiguration.hpp b/src/PiPedalConfiguration.hpp
index 282c9f8..779f7e8 100644
--- a/src/PiPedalConfiguration.hpp
+++ b/src/PiPedalConfiguration.hpp
@@ -45,6 +45,7 @@ private:
     bool logHttpRequests_ = false;
     int logLevel_ = 0;
     uint64_t maxUploadSize_ = 1024*1024;
+    bool tone3000A2Models_ = true;
     std::string accessPointGateway_;
     std::string accessPointServerAddress_;
     bool isVst3Enabled_ = true;
@@ -67,6 +68,7 @@ public:
     bool GetMLock() const { return mlock_; }
     uint64_t GetMaxUploadSize() const { return maxUploadSize_; }
 
+    bool GetTone3000A2Models() const { return tone3000A2Models_; }
     LogLevel GetLogLevel() const { return (LogLevel)this->logLevel_; }
 
     bool LogHttpRequests() const { return this->logHttpRequests_; }
diff --git a/src/PiPedalModel.hpp b/src/PiPedalModel.hpp
index b24cfd6..d62d84b 100644
--- a/src/PiPedalModel.hpp
+++ b/src/PiPedalModel.hpp
@@ -364,6 +364,8 @@ namespace pipedal
 
         void Init(const PiPedalConfiguration &configuration);
 
+        const PiPedalConfiguration &Configuration() const { return configuration; }
+
         void LoadLv2PluginInfo();
         void Load();
 
diff --git a/src/WebServerConfig.cpp b/src/WebServerConfig.cpp
index e255b3f..b711322 100644
--- a/src/WebServerConfig.cpp
+++ b/src/WebServerConfig.cpp
@@ -1315,12 +1315,14 @@ static std::string StripPortNumber(const std::string &fromAddress)
 class InterceptConfig : public RequestHandler
 {
 private:
+    PiPedalModel&model;
     uint64_t maxUploadSize;
     int portNumber;
 
 public:
-    InterceptConfig(int portNumber, uint64_t maxUploadSize)
+    InterceptConfig(PiPedalModel&model,int portNumber, uint64_t maxUploadSize)
         : RequestHandler("/var/config.json"),
+          model(model),
           maxUploadSize(maxUploadSize),
           portNumber(portNumber)
     {
@@ -1337,6 +1339,7 @@ public:
           << "\", \"ui_plugins\": [ ], \"max_upload_size\": " << maxUploadSize
           << ", \"enable_auto_update\": " << (ENABLE_AUTO_UPDATE ? " true" : "false")
           << ", \"has_wifi_device\": " << (HotspotManager::HasWifiDevice() ? " true" : "false")
+          << ", \"tone3000_A2_models\": " << (model.Configuration().GetTone3000A2Models() ? " true" : "false")
           << " }";
 
         return s.str();
@@ -1396,7 +1399,7 @@ void pipedal::ConfigureWebServer(
     int port,
     size_t maxUploadSize)
 {
-    std::shared_ptr<RequestHandler> interceptConfig{new InterceptConfig(port, maxUploadSize)};
+    std::shared_ptr<RequestHandler> interceptConfig{new InterceptConfig(model,port, maxUploadSize)};
     server.AddRequestHandler(interceptConfig);
 
     std::shared_ptr<DownloadIntercept> downloadIntercept = std::make_shared<DownloadIntercept>(&model);
diff --git a/todo.txt b/todo.txt
index 8775d09..d6800b0 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,4 +1,17 @@
-Benchmark Results:
+A2 Questions
+
+Does A2 support Callibration?
+input_level_dbu, output_level_dbu accessors on NeuralAmpModelerCore DSP
+slimmable_weights accessors on NeuralAmpModelerCore DSP
+standard values for slimmable_weights? 
+
+Implement NAM Model Weight selection UI
+
+NAM INput VU is f*ed up.
+
+File Player Underrun is NOT CPU use related. There's an underrun somewhere.
+
+Update Pi 4 Benchmark Results:
 
 The benchmark is to run TooB Neural Amp Modeler with an A1 model to generate 100s of audio. Lower times are better.
 
diff --git a/vite/public/var/config.json b/vite/public/var/config.json
index ff7662c..ed6f056 100644
--- a/vite/public/var/config.json
+++ b/vite/public/var/config.json
@@ -6,5 +6,7 @@
     "fakeAndroid": false,
     "ui_plugins": [],
     "enable_auto_update": true,
-    "has_wifi_device": false
+    "has_wifi_device": false,
+    "tone3000_A2_models": true,
+    "end": true
 }
\ No newline at end of file
diff --git a/vite/src/pipedal/Lv2Plugin.tsx b/vite/src/pipedal/Lv2Plugin.tsx
index be37817..c1c0bba 100644
--- a/vite/src/pipedal/Lv2Plugin.tsx
+++ b/vite/src/pipedal/Lv2Plugin.tsx
@@ -949,7 +949,7 @@ export class UiControl implements Deserializable<UiControl> {
                     return scale_point.label;
                 }
             }
-            return "#invalid";
+            return value.toString();
         } else if (this.integer_property) {
             return value.toFixed(0);
         } else {
diff --git a/vite/src/pipedal/PiPedalModel.tsx b/vite/src/pipedal/PiPedalModel.tsx
index 7e87e11..d7ac129 100644
--- a/vite/src/pipedal/PiPedalModel.tsx
+++ b/vite/src/pipedal/PiPedalModel.tsx
@@ -1316,6 +1316,7 @@ export class PiPedalModel //implements PiPedalModel
     maxFileUploadSize: number = 512 * 1024 * 1024;
     maxPresetUploadSize: number = 1024 * 1024;
     debug: boolean = false;
+    tone3000_A2_models: boolean = true;
     enableAutoUpdate: boolean = false;
 
 
@@ -1326,6 +1327,7 @@ export class PiPedalModel //implements PiPedalModel
             let response: Response = await fetch(myRequest);
             let data = await response.json();
 
+            this.tone3000_A2_models = data.tone3000_A2_models ?? true;
             this.enableAutoUpdate = !!data.enable_auto_update;
             this.hasWifiDevice.set(!!data.has_wifi_device);
             if (data.max_upload_size) {
diff --git a/vite/src/pipedal/PluginControl.tsx b/vite/src/pipedal/PluginControl.tsx
index bf3ba93..2689be4 100644
--- a/vite/src/pipedal/PluginControl.tsx
+++ b/vite/src/pipedal/PluginControl.tsx
@@ -154,6 +154,66 @@ export type PluginControlState = {
     previewValue?: string;
 };
 
+export interface CustomPluginControlProps extends WithStyles<typeof pluginControlStyles> {
+    title: string;
+    isSelect?: boolean;
+    isButton?: boolean;
+    item_width?: number;
+    mainControl: React.ReactNode;
+    editControl?: React.ReactNode;
+};
+export interface CustomPluginControlState {
+
+};
+const CustomPluginControl =
+    withStyles(
+        class extends Component<CustomPluginControlProps, CustomPluginControlState> {
+            constructor(props: CustomPluginControlProps) {
+                super(props);
+            }
+            render() {
+                let classes = withStyles.getClasses(this.props);
+                return (
+                    <div 
+                        className={classes.controlFrame}
+                        style={{ width: this.props.item_width }}
+                    >
+                        {/* TITLE SECTION */}
+                        <div className={classes.titleSection}
+                            style={
+                                {
+                                    alignSelf: "stretch", marginBottom: 8, marginLeft: this.props.isSelect ? 8 : 0, marginRight: 0
+
+                                }}>
+                            <Typography variant="caption" display="block" noWrap style={{
+                                width: "100%",
+                                textAlign: this.props.isSelect ? "left" : "center"
+                            }}> {this.props.isButton ? "\u00A0" : this.props.title}</Typography>
+                        </div>
+                        {/* CONTROL SECTION */}
+
+                        <div className={classes.midSection}>
+                            {this.props.mainControl}
+                        </div>
+
+                        {/* LABEL/EDIT SECTION*/}
+                        <div className={classes.editSection} >
+                            {this.props.editControl}
+                        </div>
+
+                    </div>
+                );
+                return (<div />);
+            }
+
+        },
+
+        pluginControlStyles
+    );
+
+export { CustomPluginControl };
+
+
 const PluginControl =
     withTheme(withStyles(
         class extends Component<PluginControlProps, PluginControlState> {
@@ -490,7 +550,7 @@ const PluginControl =
                 let tapTime = e.timeStamp;
                 let dT = tapTime - this.lastTapMs;
 
-                
+
                 this.lastTapMs = tapTime;
 
                 if (dT < 500) {
@@ -521,7 +581,7 @@ const PluginControl =
                         let ms = e.timeStamp - this.tapStartMs;
                         if (ms < 200) {
                             this.onPointerTap(e);
-                        } 
+                        }
                     }
                     // prevent click from firing on other elements 
                     // when the pointer goes up0.
@@ -619,7 +679,7 @@ const PluginControl =
                             break;
                     }
                 }
-                this.setState({ previewValue: undefined});
+                this.setState({ previewValue: undefined });
             }
             previewInputValue(value: number, commitValue: boolean) {
                 let range = this.valueToRange(value);
@@ -688,7 +748,7 @@ const PluginControl =
                         this.setState({ previewValue: undefined });
                     } else {
                         this.setState({ previewValue: v });
-                    }   
+                    }
                 }
                 let selectElement = this.selectRef.current;
                 if (selectElement) {
@@ -890,7 +950,7 @@ const PluginControl =
 
             private defaultStep(min: number, max: number): number {
                 let range = Math.abs(max - min);
-                if (range <= 1) return 0.01;    
+                if (range <= 1) return 0.01;
                 if (range <= 10) return 0.1;
                 if (range <= 100) return 1;
                 if (range <= 1000) return 10;
@@ -1056,7 +1116,7 @@ const PluginControl =
                                 )
                                     : (isGraphicEq) ? (
                                         <div style={{ flex: "0 1 auto" }}>
-                                            
+
                                             <ControlTooltip uiControl={control} valueTooltip={this.state.previewValue}>
                                                 <GraphicEqCtl
                                                     imgRef={this.imgRef}
@@ -1076,7 +1136,7 @@ const PluginControl =
                                         </div>
                                     ) : (
                                         <div style={{ flex: "0 1 auto" }}>
-                                            <ControlTooltip uiControl={control} 
+                                            <ControlTooltip uiControl={control}
                                                 valueTooltip={this.state.previewValue}>
                                                 <DialIcon ref={this.imgRef}
                                                     style={{
@@ -1110,7 +1170,7 @@ const PluginControl =
                                                 error={this.state.error}
                                                 inputProps={{
                                                     className: "scrollMod",
-                                                    type: isMobileDevice()? "text": "number",
+                                                    type: isMobileDevice() ? "text" : "number",
                                                     inputMode: "numeric",
 
                                                     min: this.props.uiControl?.min_value,
diff --git a/vite/src/pipedal/PluginControlView.tsx b/vite/src/pipedal/PluginControlView.tsx
index ba8b3db..0a723e9 100644
--- a/vite/src/pipedal/PluginControlView.tsx
+++ b/vite/src/pipedal/PluginControlView.tsx
@@ -38,9 +38,9 @@ import { UiPlugin, UiControl, UiFileProperty, UiFrequencyPlot, ScalePoint } from
 import {
     Pedalboard, PedalboardItem, ControlValue
 } from './Pedalboard';
-import PluginControl from './PluginControl';
+import PluginControl, {CustomPluginControl} from './PluginControl';
 import ResizeResponsiveComponent from './ResizeResponsiveComponent';
-import SideChainSelectControl, {SideChainSelectDialog} from './SideChainSelectControl';
+import SideChainSelectControl, { SideChainSelectDialog } from './SideChainSelectControl';
 import VuMeter from './VuMeter';
 import { nullCast } from './Utility'
 import { PiPedalStateError } from './PiPedalError';
@@ -66,6 +66,7 @@ const LANDSCAPE_HEIGHT_BREAK = 500;
 
 export interface ICustomizationHost {
     makeStandardControl(uiControl: UiControl, controlValues: ControlValue[]): ReactNode;
+    makeCustomControl(title: string, mainControl: ReactNode, editControl?: ReactNode): ReactNode;
     renderControlGroup(controlGroup: ControlGroup, key: string): ReactNode;
     isLandscapeGrid(): boolean;
 }
@@ -379,6 +380,7 @@ type PluginControlViewState = {
     sidechainDialogOpen: boolean
 };
 
+
 const PluginControlView =
     withTheme(withStyles(
         class extends ResizeResponsiveComponent<PluginControlViewProps, PluginControlViewState> {
@@ -495,6 +497,7 @@ const PluginControlView =
             }
             private ixKey: number = 1;
 
+
             makeStandardControl(uiControl: UiControl, controlValues: ControlValue[]): ReactNode {
                 let symbol = uiControl.symbol;
                 if (!uiControl.is_input) {
@@ -882,7 +885,7 @@ const PluginControlView =
             }
 
             handleSelectSidechainInput() {
-                this.setState({sidechainDialogOpen: true});
+                this.setState({ sidechainDialogOpen: true });
             }
 
             handleModGuiFileProperty(instanceId: number, filePropertyUri: string, selectedFile: string) {
@@ -963,7 +966,9 @@ const PluginControlView =
 
                 )
             }
-
+            makeCustomControl(title: string, mainControl: ReactNode, editControl?: ReactNode): ReactNode {
+                return (<CustomPluginControl title={title} mainControl={mainControl} editControl={editControl} />);
+            }
             renderPiPedalControl(pedalboardItem?: PedalboardItem): ReactNode {
                 this.controlKeyIndex = 0;
 
@@ -1115,12 +1120,12 @@ const PluginControlView =
                         )}
                         {this.state.sidechainDialogOpen && (
                             <SideChainSelectDialog open={this.state.sidechainDialogOpen}
-                                onClose={()=>{ this.setState({sidechainDialogOpen: false});}}
-                            selectItems={this.getSidechainSelectItems()}
-                            selectedInstanceId={this.props.item.sideChainInputId}
-                            onChanged={(instanceId: number) => {
-                                this.model.setPedalboardSideChainInput(this.props.item.instanceId, instanceId);
-                            }}
+                                onClose={() => { this.setState({ sidechainDialogOpen: false }); }}
+                                selectItems={this.getSidechainSelectItems()}
+                                selectedInstanceId={this.props.item.sideChainInputId}
+                                onChanged={(instanceId: number) => {
+                                    this.model.setPedalboardSideChainInput(this.props.item.instanceId, instanceId);
+                                }}
                             />
                         )}
                         {/* xxx: I don't think we need this anyore. */}
@@ -1142,3 +1147,5 @@ const PluginControlView =
 
 export default PluginControlView;
 
+
+
diff --git a/vite/src/pipedal/Tone3000Downloader.tsx b/vite/src/pipedal/Tone3000Downloader.tsx
index f5e72bd..5e8d9a4 100644
--- a/vite/src/pipedal/Tone3000Downloader.tsx
+++ b/vite/src/pipedal/Tone3000Downloader.tsx
@@ -28,7 +28,6 @@ const THROTTLING_TRIGGGER_LEVEL = Math.floor(ALLOWED_DOWNLOADS_PER_MINUTE/2);
 
 class DownloadThrottler {
 
-    private throttleActive: boolean = false;
     private fifo: number[] = [];
     private downloadCount: number = 0;
 
@@ -39,11 +38,7 @@ class DownloadThrottler {
             this.fifo.shift();
         }
 
-        if (this.fifo.length > THROTTLING_TRIGGGER_LEVEL) {
-            this.throttleActive = true;
-        } else {
-            this.throttleActive = false;
-        }
+        this.downloadCount = this.fifo.length;
     }
     getThrottleDelay(now : number = Date.now()): number {
         while (this.fifo.length > 0 && this.fifo[0] + 60000 <= now) {
@@ -264,7 +259,7 @@ export class Tone3000DownloadHandler {
             let models: Model[] = [];
             let architectureFilter: number | undefined = undefined;
             // Take A2 models only for NAM downloads, and only if the tone actually has A2 models.
-            if (downloadType === Tone3000DownloadType.Nam && !!tone.a2_models_count) {
+            if (downloadType === Tone3000DownloadType.Nam && !!tone.a2_models_count && this.model.tone3000_A2_models) {
                 architectureFilter = 2; // NAM models only
             }
 
diff --git a/vite/src/pipedal/ToobNamView.tsx b/vite/src/pipedal/ToobNamView.tsx
index 31043e4..dfa2677 100644
--- a/vite/src/pipedal/ToobNamView.tsx
+++ b/vite/src/pipedal/ToobNamView.tsx
@@ -27,14 +27,20 @@ import { withStyles } from "tss-react/mui";
 
 import IControlViewFactory from './IControlViewFactory';
 import { PiPedalModelFactory, PiPedalModel, ListenHandle, State } from "./PiPedalModel";
-import { PedalboardItem,ControlValue } from './Pedalboard';
+import { PedalboardItem, ControlValue } from './Pedalboard';
 import PluginControlView, { ICustomizationHost, ControlGroup, ControlViewCustomization } from './PluginControlView';
-import { UiPlugin,UiControl, ControlType } from './Lv2Plugin';
+import { UiPlugin, UiControl, ControlType } from './Lv2Plugin';
+import Select from '@mui/material/Select/Select';
+import MenuItem from '@mui/material/MenuItem/MenuItem';
+import { CustomPluginControl } from './PluginControl';
 
 
-const TOOB_NAM__MODEL_METADATA = "http://two-play.com/plugins/toob-nam#model_metadata";
+const TOOB_NAM__MODEL_METADATA_URI = "http://two-play.com/plugins/toob-nam#model_metadata";
+const TOOB_NAM__MODEL_WEIGHT_URI = "http://two-play.com/plugins/toob-nam#modelWeight";
 
 // offset 0: an integer with the folloing bits set.
+// Must match ToobAmp/src/NeuralAmpModeler_Lv2Extensions.hpp enum TOOB_NAM_METADATA_OFFSETS
+const MAX_SLIMMABLE_WEIGHTS = 16;
 class TOOB_NAM_METADATA_OFFSETS {
     static readonly flags = 0;
     static readonly preset_version = 1;
@@ -42,7 +48,11 @@ class TOOB_NAM_METADATA_OFFSETS {
     static readonly gain = 3;
     static readonly input_level_dbu = 4;
     static readonly output_level_dbu = 5;
-    static readonly max_medatadata = 6;
+    static readonly is_a2 = 6;
+    static readonly model_weight = 7;
+    static readonly slimmable_weights_size = 8;
+    static readonly slimmable_weights = 9;
+    static readonly max_medatadata = TOOB_NAM_METADATA_OFFSETS.slimmable_weights + MAX_SLIMMABLE_WEIGHTS;
 };
 
 
@@ -55,10 +65,9 @@ class TOOB_NAM_METADATA_FLAGS {
 };
 
 class ModelMetadata {
-    constructor(metadataValues?: number[]) 
-    {
+    constructor(metadataValues?: number[]) {
+
 
-        
         if (metadataValues) {
             let flags = metadataValues[TOOB_NAM_METADATA_OFFSETS.flags];
             this.hasModel = (flags & TOOB_NAM_METADATA_FLAGS.has_model) !== 0;
@@ -72,6 +81,12 @@ class ModelMetadata {
             this.inputlevelDBU = metadataValues[TOOB_NAM_METADATA_OFFSETS.input_level_dbu];
             this.outputlevelDBU = metadataValues[TOOB_NAM_METADATA_OFFSETS.output_level_dbu];
             this.preset_version = metadataValues[TOOB_NAM_METADATA_OFFSETS.preset_version];
+            this.isA2 = metadataValues[TOOB_NAM_METADATA_OFFSETS.is_a2] !== 0;
+            this.modelWeight = metadataValues[TOOB_NAM_METADATA_OFFSETS.model_weight];
+            let slimmableWeightsSize = metadataValues[TOOB_NAM_METADATA_OFFSETS.slimmable_weights_size];
+            for (let i = 0; i < slimmableWeightsSize && i < 16; ++i) {
+                this.slimmable_weights.push(metadataValues[TOOB_NAM_METADATA_OFFSETS.slimmable_weights + i]);
+            }
         } else {
             this.hasModel = false;
             this.hasLoudness = false;
@@ -84,11 +99,16 @@ class ModelMetadata {
             this.inputlevelDBU = 0;
             this.outputlevelDBU = 0;
             this.preset_version = 1;
+            this.modelWeight = -1;
+            this.isA2 = false;
+            this.slimmable_weights = [];
         }
     }
 
     preset_version: number;
-
+    isA2: boolean = false;
+    modelWeight: number = 1.0;
+    slimmable_weights: number[] = [];
     hasModel: boolean;
     hasLoudness: boolean;
     hasGain: boolean;
@@ -100,6 +120,10 @@ class ModelMetadata {
     inputlevelDBU: number;
     outputlevelDBU: number;
 
+    hasSlimmableWeights(): boolean {
+        return this.slimmable_weights.length > 0;
+    }
+
 }
 
 
@@ -114,8 +138,10 @@ interface ToobNamViewProps extends WithStyles<typeof styles> {
 interface ToobNamViewState {
     showEqSection: boolean;
     enableCalibration: boolean;
+    showCalibration: boolean;
     enableOutputNormalization: boolean;
     modelMetadata: ModelMetadata;
+    modelWeight: number,
 }
 
 const ToobNamView =
@@ -133,18 +159,18 @@ const ToobNamView =
                 this.model = PiPedalModelFactory.getInstance();
                 this.state = {
                     showEqSection: false,
+                    showCalibration: false,
                     enableCalibration: false,
                     enableOutputNormalization: false,
-                    modelMetadata: new ModelMetadata()
+                    modelMetadata: new ModelMetadata(),
+                    modelWeight: -1
                 }
                 let pluginInfo: UiPlugin | null = this.model.getUiPlugin(this.props.item.uri);
-                if (pluginInfo === null)
-                {
+                if (pluginInfo === null) {
                     throw new Error("Plugin not fouund.");
                 }
                 let inputCalibrationControl = pluginInfo.getControl("inputCalibrationMode");
-                if (!inputCalibrationControl)
-                {
+                if (!inputCalibrationControl) {
                     throw new Error("Control not found.");
                 }
                 let patchedInputControl = new UiControl().deserialize(inputCalibrationControl);
@@ -152,14 +178,13 @@ const ToobNamView =
                 this.patchedInputControl = patchedInputControl
 
                 let outputCalibrationControl = pluginInfo.getControl("outputCalibration");
-                if (!outputCalibrationControl)
-                {
+                if (!outputCalibrationControl) {
                     throw new Error("Control not found.");
                 }
                 let patchedOutputControl = new UiControl().deserialize(outputCalibrationControl);
                 patchedOutputControl.controlType = ControlType.Select;
                 this.noCalibrationOutputControl = patchedOutputControl
-                this.noCalibrationOutputControl.scale_points.splice(1,1);
+                this.noCalibrationOutputControl.scale_points.splice(1, 1);
             }
 
             private patchedInputControl: UiControl;
@@ -171,7 +196,7 @@ const ToobNamView =
             disableControl(control: React.ReactNode, key: string) {
                 return (
                     <div style={{ opacity: 0.3, pointerEvents: "none" }}
-                       key={key}
+                        key={key}
 
                         onPointerDownCapture={(e) => {
                             e.stopPropagation();
@@ -189,42 +214,94 @@ const ToobNamView =
 
             modifyControls(host: ICustomizationHost, controls: (React.ReactNode | ControlGroup)[]): (React.ReactNode | ControlGroup)[] {
                 let EqPos = 7;
-                let CalibrationGroupPos = 8;
+                const CalibrationGroupPos = 8;
+                const ModelSizeControlPos = 9;
+                const ModelWeightControlPos = 10;
+
 
                 let calibrationGroup = controls[CalibrationGroupPos] as ControlGroup;
 
-                calibrationGroup.controls[0] = host.makeStandardControl(this.patchedInputControl,this.props.item.controlValues);
 
-                if (this.state.enableCalibration)
-                {
-                    calibrationGroup.controls[0] = host.makeStandardControl(this.patchedInputControl,this.props.item.controlValues);
+                if (this.state.showCalibration) {
+                    calibrationGroup.controls[0] = host.makeStandardControl(this.patchedInputControl, this.props.item.controlValues);
 
-                } else  {
-                    calibrationGroup.controls[0] = host.makeStandardControl(this.patchedInputControl,
-                        [ new ControlValue("inputCalibrationMode",0.0)]
-                    );
-                    calibrationGroup.controls[0] = this.disableControl(calibrationGroup.controls[0], "cg_01d");
-                    calibrationGroup.controls[1] = this.disableControl(calibrationGroup.controls[1], "cg_02d");
+                    if (this.state.enableCalibration) {
+                        calibrationGroup.controls[0] = host.makeStandardControl(this.patchedInputControl, this.props.item.controlValues);
 
-                    if (this.state.enableOutputNormalization)
-                    {
-                        calibrationGroup.controls[2] = host.makeStandardControl(this.noCalibrationOutputControl, this.props.item.controlValues);
                     } else {
-                        let tControl: UiControl = this.noCalibrationOutputControl.clone();
-                        tControl.symbol = "_disabled_output";
-                        calibrationGroup.controls[2] = host.makeStandardControl(
-                            tControl, 
-                            [ new ControlValue("_disabled_output",2.0)]);
-                        calibrationGroup.controls[2] = this.disableControl(calibrationGroup.controls[2], "cg_03d");
+                        calibrationGroup.controls[0] = host.makeStandardControl(this.patchedInputControl,
+                            [new ControlValue("inputCalibrationMode", 0.0)]
+                        );
+                        calibrationGroup.controls[0] = this.disableControl(calibrationGroup.controls[0], "cg_01d");
+                        calibrationGroup.controls[1] = this.disableControl(calibrationGroup.controls[1], "cg_02d");
 
+                        if (this.state.enableOutputNormalization) {
+                            calibrationGroup.controls[2] = host.makeStandardControl(this.noCalibrationOutputControl, this.props.item.controlValues);
+                        } else {
+                            let tControl: UiControl = this.noCalibrationOutputControl.clone();
+                            tControl.symbol = "_disabled_output";
+                            calibrationGroup.controls[2] = host.makeStandardControl(
+                                tControl,
+                                [new ControlValue("_disabled_output", 2.0)]);
+                            calibrationGroup.controls[2] = this.disableControl(calibrationGroup.controls[2], "cg_03d");
+
+                        }
                     }
+                } else {
+                    controls[CalibrationGroupPos] = null;
                 }
+                controls[ModelSizeControlPos] = null;
+                controls[ModelWeightControlPos] = null;
                 if (!this.state.showEqSection) {
                     controls.splice(EqPos, 1);
                 }
+                if (this.state.modelMetadata.hasSlimmableWeights()) {
+                    controls.splice(3, 0, this.MakeModelWeightSelector(host));
+                }
                 return controls;
             }
 
+            ModelWeightToString(weight: number): string {
+                switch (weight) {
+                    case 1.0: return "Standard";
+                    case 0.5: return "Lite";
+                    case 0.25: return "Feather";
+                    default: return weight.toString();
+                }
+            }
+
+            SelectModelWeight(weight: number) {
+                this.setState({ modelWeight: weight });
+                this.model.setPatchProperty(this.props.instanceId, TOOB_NAM__MODEL_WEIGHT_URI, weight);
+
+            }
+            MakeModelWeightSelector(host: ICustomizationHost): React.ReactNode {
+                if ((this.state.modelMetadata.modelWeight === undefined || this.state.modelMetadata.modelWeight || this.state.modelMetadata.hasSlimmableWeights()) === false) {
+                    return null;
+                }
+                let selectControl = (
+                    <Select key="model_weight_control" variant="standard" size="small" value={this.state.modelMetadata.modelWeight}
+                        onChange={(e) => { this.SelectModelWeight(Number(e.target.value)) }}
+                        style={{ marginLeft: 4, marginRight: 4, width: 140, fontSize: 12, marginTop: 4 }}
+                    >
+                        {this.state.modelMetadata.slimmable_weights.map((weight, index) => {
+                            return (
+                                <MenuItem key={weight.toString()} value={weight}
+                                    style={{ fontSize: 14 }}
+                                >
+                                    {this.ModelWeightToString(weight)}
+                                </MenuItem>
+                            );
+                        })}
+
+                    </Select>
+                );
+                return (
+                    <div style={{ marginLeft: 12 }}>
+                        <CustomPluginControl title="Model Weight" mainControl={selectControl} isSelect={true} />
+                    </div>);
+            }
+
             private handleConnectionStateChanged(state: State) {
                 if (state === State.Ready) {
                     this.unsubscribeFromMetadata();
@@ -235,11 +312,16 @@ const ToobNamView =
             handleModelMetadata(atomData: any) {
                 if (atomData && atomData.otype_ === "Vector" && atomData.value) {
                     let metadata = new ModelMetadata(atomData.value as number[]);
-                    this.setState({ 
+                    metadata.hasInputLevelDBU || metadata.hasOutputLevelDBU
+                    this.setState({
                         modelMetadata: metadata,
                         showEqSection: metadata.preset_version === 0,
+                        showCalibration: (
+                            metadata.hasInputLevelDBU || metadata.hasOutputLevelDBU ||
+                            (metadata.hasLoudness && metadata.hasGain)) && metadata.hasModel,
                         enableCalibration: metadata.hasInputLevelDBU && metadata.hasModel,
-                        enableOutputNormalization: metadata.hasLoudness && metadata.hasModel
+                        enableOutputNormalization: metadata.hasLoudness && metadata.hasModel,
+                        modelWeight: metadata.modelWeight
                     });
                 }
             }
@@ -248,13 +330,13 @@ const ToobNamView =
                 this.subscribedId = this.props.instanceId;
                 this.listenHandle = this.model.monitorPatchProperty(
                     this.props.instanceId,
-                    TOOB_NAM__MODEL_METADATA,
+                    TOOB_NAM__MODEL_METADATA_URI,
                     (instanceId, propertyUri, atomData) => {
                         this.handleModelMetadata(atomData);
                     });
                 this.model.getPatchProperty(
                     this.props.instanceId,
-                    TOOB_NAM__MODEL_METADATA
+                    TOOB_NAM__MODEL_METADATA_URI
                 ).then((atomData) => {
                     this.handleModelMetadata(atomData);
                 }).catch((e) => {