I have a 6165 I'm using as a blend—a reverse set up of the pan, where I have two inputs going into the A/B outs on the pedal, and using the A pedal input as an output to my amp. I do this to blend the distortion side of my board with the clean side, and to have one or the other at full heel-down or full toe-down, then out to my amp.

When I pan toward full toe-down, I get the gradual blending of my distorted side, gets up to full distortion as I near full toe-down, but then as I get to the final eighth inch toward full toe-down, the volume drops back to almost half. I have to put something under the front end of the rocker so it doesn't go all the way down in order to have full volume.

Is there an adjustment I can make to fix this?