diff --git a/src/Experimental.h b/src/Experimental.h
index 251c972f3..ad135bd6b 100644
--- a/src/Experimental.h
+++ b/src/Experimental.h
@@ -57,6 +57,16 @@
 // DA: Enables dark audacity theme and customisations.
 //#define EXPERIMENTAL_DA
 
+// These CFG macros allow easy distinction between Audacity and DA defaults.
+#ifdef EXPERIMENTAL_DA
+#define CFG_A( x ) 
+#define CFG_DA( x ) x
+#else
+#define CFG_A( x ) x
+#define CFG_DA( x ) 
+#endif
+
+
 // Define this so that sync-lock tiles shine through spectrogram.
 // The spectrogram pastes a bitmap over the tiles.
 // This makes it use alpha blending, most transparent where least intense.
diff --git a/src/TrackPanel.cpp b/src/TrackPanel.cpp
index fe4dac4b6..3c97027fe 100644
--- a/src/TrackPanel.cpp
+++ b/src/TrackPanel.cpp
@@ -3499,7 +3499,7 @@ void TrackPanelCellIterator::UpdateRect()
          }
          case CellType::VRuler:
             {
-               const int kGuard = 8; // 8 pixels to reduce risk of VZooming accidentally
+               const int kGuard = 5; // 5 pixels to reduce risk of VZooming accidentally
                mRect.x = kTrackInfoWidth;
                // Right edge of the VRuler is inactive.
                mRect.width = mPanel->GetLeftOffset() - mRect.x -kGuard;
diff --git a/src/prefs/TracksBehaviorsPrefs.cpp b/src/prefs/TracksBehaviorsPrefs.cpp
index 040473238..3df5c2f79 100644
--- a/src/prefs/TracksBehaviorsPrefs.cpp
+++ b/src/prefs/TracksBehaviorsPrefs.cpp
@@ -87,7 +87,7 @@ void TracksBehaviorsPrefs::PopulateOrExchange(ShuttleGui & S)
 #endif
       S.TieCheckBox(_("Enable Vertical Zooming"),
                     wxT("/GUI/VerticalZooming"),
-                    false);
+                    CFG_DA(!) true);
 
       S.AddSpace(10);
 
diff --git a/src/tracks/playabletrack/wavetrack/ui/WaveTrackVZoomHandle.cpp b/src/tracks/playabletrack/wavetrack/ui/WaveTrackVZoomHandle.cpp
index 0eefcb0b0..460d3bf19 100644
--- a/src/tracks/playabletrack/wavetrack/ui/WaveTrackVZoomHandle.cpp
+++ b/src/tracks/playabletrack/wavetrack/ui/WaveTrackVZoomHandle.cpp
@@ -41,7 +41,7 @@ bool IsDragZooming(int zoomStart, int zoomEnd)
 {
    const int DragThreshold = 3;// Anything over 3 pixels is a drag, else a click.
    bool bVZoom;
-   gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, false);
+   gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, CFG_DA(!) true);
    return bVZoom && (abs(zoomEnd - zoomStart) > DragThreshold);
 }
 
@@ -607,7 +607,7 @@ HitTestPreview WaveTrackVZoomHandle::HitPreview(const wxMouseState &state)
       ::MakeCursor(wxCURSOR_MAGNIFIER, ZoomOutCursorXpm, 19, 15);
    static  wxCursor arrowCursor{ wxCURSOR_ARROW };
    bool bVZoom;
-   gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, false);
+   gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, CFG_DA(!) true);
    bVZoom &= !state.RightIsDown();
    const auto message = bVZoom ? 
       _("Click to vertically zoom in. Shift-click to zoom out. Drag to specify a zoom region.") :
@@ -682,7 +682,7 @@ UIHandle::Result WaveTrackVZoomHandle::Release
       std::unique_ptr<PopupMenuTable::Menu>
          pMenu(PopupMenuTable::BuildMenu(pParent, pTable, &data));
       bool bVZoom;
-      gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, false);
+      gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, CFG_DA(!) true);
 
       // Accelerators only if zooming enabled.
       if( !bVZoom )
@@ -705,7 +705,7 @@ UIHandle::Result WaveTrackVZoomHandle::Release
    }
    else{
       bool bVZoom;
-      gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, false);
+      gPrefs->Read(wxT("/GUI/VerticalZooming"), &bVZoom, CFG_DA(!) true);
       // Ignore Capture Lost event 
       bVZoom &= event.GetId() != kCaptureLostEventId;
       // shiftDown | rightUp | ZoomKind