diff --git a/src/ShuttleGui.cpp b/src/ShuttleGui.cpp
index c5c17f3ea..f1c4c5619 100644
--- a/src/ShuttleGui.cpp
+++ b/src/ShuttleGui.cpp
@@ -490,7 +490,7 @@ wxComboBox * ShuttleGuiBase::AddCombo( const wxString &Prompt, const wxString &S
 
 
 wxRadioButton * ShuttleGuiBase::DoAddRadioButton(
-   const wxString &Prompt, int style)
+   const wxString &Prompt, int style, int selector, int initValue)
 {
    /// \todo This function and the next two, suitably adapted, could be
    /// used by TieRadioButton.
@@ -504,17 +504,20 @@ wxRadioButton * ShuttleGuiBase::DoAddRadioButton(
    if ( style )
       pRad->SetValue( true );
    UpdateSizers();
+   pRad->SetValue( selector == initValue );
    return pRad;
 }
 
-wxRadioButton * ShuttleGuiBase::AddRadioButton(const wxString &Prompt)
+wxRadioButton * ShuttleGuiBase::AddRadioButton(
+   const wxString &Prompt, int selector, int initValue)
 {
-   return DoAddRadioButton( Prompt, wxRB_GROUP );
+   return DoAddRadioButton( Prompt, wxRB_GROUP, selector, initValue );
 }
 
-wxRadioButton * ShuttleGuiBase::AddRadioButtonToGroup(const wxString &Prompt)
+wxRadioButton * ShuttleGuiBase::AddRadioButtonToGroup(
+   const wxString &Prompt, int selector, int initValue)
 {
-   return DoAddRadioButton( Prompt, 0 );
+   return DoAddRadioButton( Prompt, 0, selector, initValue );
 }
 
 #ifdef __WXMAC__
diff --git a/src/ShuttleGui.h b/src/ShuttleGui.h
index f07d78fef..c99287375 100644
--- a/src/ShuttleGui.h
+++ b/src/ShuttleGui.h
@@ -137,8 +137,15 @@ public:
    wxSlider * AddVSlider(const wxString &Prompt, int pos, int Max);
    wxSpinCtrl * AddSpinCtrl(const wxString &Prompt, int Value, int Max, int Min);
    wxTreeCtrl * AddTree();
-   wxRadioButton * AddRadioButton( const wxString & Prompt );
-   wxRadioButton * AddRadioButtonToGroup( const wxString & Prompt);
+
+   // Pass the same initValue to the sequence of calls to AddRadioButton and
+   // AddRadioButtonToGroup.
+   // The radio button is filled if selector == initValue
+   wxRadioButton * AddRadioButton(
+      const wxString & Prompt, int selector = 0, int initValue = 0 );
+   wxRadioButton * AddRadioButtonToGroup(
+      const wxString & Prompt, int selector = 1, int initValue = 0 );
+
    // Only the last button specified as default (if more than one) will be
    // Always ORs the flags with wxALL (which affects borders):
    wxButton * AddButton(
@@ -375,7 +382,8 @@ private:
    Maybe<WrappedType> mRadioValue;  /// The wrapped value associated with the active radio button.
    int mRadioCount;       /// The index of this radio item.  -1 for none.
    wxString mRadioValueString; /// Unwrapped string value.
-   wxRadioButton * DoAddRadioButton(const wxString &Prompt, int style);
+   wxRadioButton * DoAddRadioButton(
+      const wxString &Prompt, int style, int selector, int initValue);
 };
 
 // A rarely used helper function that sets a pointer
diff --git a/src/effects/Equalization.cpp b/src/effects/Equalization.cpp
index d13230743..bc9887dbf 100644
--- a/src/effects/Equalization.cpp
+++ b/src/effects/Equalization.cpp
@@ -1041,16 +1041,34 @@ void EffectEqualization::PopulateOrExchange(ShuttleGui & S)
       {
          S.AddUnits(_("&Processing: "));
 
-         mMathProcessingType[0] = S.Id(ID_DefaultMath).
-            AddRadioButton(_("D&efault"));
-         mMathProcessingType[1] = S.Id(ID_SSE).
-            AddRadioButtonToGroup(_("&SSE"));
-         mMathProcessingType[2] = S.Id(ID_SSEThreaded).
-            AddRadioButtonToGroup(_("SSE &Threaded"));
-         mMathProcessingType[3] = S.Id(ID_AVX).
-            AddRadioButtonToGroup(_("A&VX"));
-         mMathProcessingType[4] = S.Id(ID_AVXThreaded).
-            AddRadioButtonToGroup(_("AV&X Threaded"));
+         // update the control state
+         int mathPath = EffectEqualization48x::GetMathPath();
+         int value =
+            (mathPath & MATH_FUNCTION_SSE)
+            ? (mathPath & MATH_FUNCTION_THREADED)
+               ? 2
+               : 1
+            : false // (mathPath & MATH_FUNCTION_AVX) // not implemented
+               ? (mathPath & MATH_FUNCTION_THREADED)
+                  ? 4
+                  : 3
+               : 0;
+
+         mMathProcessingType[0] = S.Id(ID_DefaultMath)
+            .AddRadioButton(_("D&efault"),
+                            0, value);
+         mMathProcessingType[1] = S.Id(ID_SSE)
+            .AddRadioButtonToGroup(_("&SSE"),
+                                   1, value);
+         mMathProcessingType[2] = S.Id(ID_SSEThreaded)
+            .AddRadioButtonToGroup(_("SSE &Threaded"),
+                                   2, value);
+         mMathProcessingType[3] = S.Id(ID_AVX)
+            .AddRadioButtonToGroup(_("A&VX"),
+                                   3, value);
+         mMathProcessingType[4] = S.Id(ID_AVXThreaded)
+            .AddRadioButtonToGroup(_("AV&X Threaded"),
+                                   4, value);
 
          if (!EffectEqualization48x::GetMathCaps()->SSE)
          {
@@ -1062,21 +1080,7 @@ void EffectEqualization::PopulateOrExchange(ShuttleGui & S)
             mMathProcessingType[3]->Disable();
             mMathProcessingType[4]->Disable();
          }
-         // update the control state
-         mMathProcessingType[0]->SetValue(true);
-         int mathPath=EffectEqualization48x::GetMathPath();
-         if (mathPath&MATH_FUNCTION_SSE)
-         {
-            mMathProcessingType[1]->SetValue(true);
-            if (mathPath&MATH_FUNCTION_THREADED)
-               mMathProcessingType[2]->SetValue(true);
-         }
-         if (false) //mathPath&MATH_FUNCTION_AVX) { not implemented
-         {
-            mMathProcessingType[3]->SetValue(true);
-            if (mathPath&MATH_FUNCTION_THREADED)
-               mMathProcessingType[4]->SetValue(true);
-         }
+
          S.Id(ID_Bench).AddButton(_("&Bench"));
       }
       S.EndHorizontalLay();
diff --git a/src/widgets/Meter.cpp b/src/widgets/Meter.cpp
index 85d6bc5d5..c9cdc4f45 100644
--- a/src/widgets/Meter.cpp
+++ b/src/widgets/Meter.cpp
@@ -2024,13 +2024,10 @@ void MeterPanel::OnPreferences(wxCommandEvent & WXUNUSED(event))
         {
            S.StartVerticalLay();
            {
-              gradient = S.AddRadioButton(_("Gradient"));
+              gradient = S.AddRadioButton(_("Gradient"), true, mGradient);
               gradient->SetName(_("Gradient"));
-              gradient->SetValue(mGradient);
-
-              rms = S.AddRadioButtonToGroup(_("RMS"));
+              rms = S.AddRadioButtonToGroup(_("RMS"), false, mGradient);
               rms->SetName(_("RMS"));
-              rms->SetValue(!mGradient);
            }
            S.EndVerticalLay();
         }
@@ -2040,13 +2037,10 @@ void MeterPanel::OnPreferences(wxCommandEvent & WXUNUSED(event))
         {
            S.StartVerticalLay();
            {
-              db = S.AddRadioButton(_("dB"));
+              db = S.AddRadioButton(_("dB"), true, mDB);
               db->SetName(_("dB"));
-              db->SetValue(mDB);
-
-              linear = S.AddRadioButtonToGroup(_("Linear"));
+              linear = S.AddRadioButtonToGroup(_("Linear"), false, mDB);
               linear->SetName(_("Linear"));
-              linear->SetValue(!mDB);
            }
            S.EndVerticalLay();
         }
@@ -2056,17 +2050,15 @@ void MeterPanel::OnPreferences(wxCommandEvent & WXUNUSED(event))
         {
            S.StartVerticalLay();
            {
-              automatic = S.AddRadioButton(_("Automatic"));
+              automatic = S.AddRadioButton(
+                  _("Automatic"), AutomaticStereo, mDesiredStyle);
               automatic->SetName(_("Automatic"));
-              automatic->SetValue(mDesiredStyle == AutomaticStereo);
-
-              horizontal = S.AddRadioButtonToGroup(_("Horizontal"));
+              horizontal = S.AddRadioButtonToGroup(
+                  _("Horizontal"), HorizontalStereo, mDesiredStyle);
               horizontal->SetName(_("Horizontal"));
-              horizontal->SetValue(mDesiredStyle == HorizontalStereo);
-
-              vertical = S.AddRadioButtonToGroup(_("Vertical"));
+              vertical = S.AddRadioButtonToGroup(
+                  _("Vertical"), VerticalStereo, mDesiredStyle);
               vertical->SetName(_("Vertical"));
-              vertical->SetValue(mDesiredStyle == VerticalStereo);
            }
            S.EndVerticalLay();
         }