I tore down my layout in November and started a new one in January.  On the old one I had the Proto Throttle working great.  I am now hooking up all the electronics on my new layout.  The PT is working, except for variable braking.  I remember having issues with this on the old layout, but eventually got it working out. I had to fool around with CV settings on the Tsunami.  But not being the sharpest pencil in the box I failed to document the solution.  Has anyone had similar problems and know the fix.  Thanks.