Quick follow up: It *might* be an expression pedal calibration issue with my Liquid Foot. With my M9, I have tried using the exp. pedal to control a wah preset. I am not 100% sure yet, but I think the exp. pedal may be exhibiting the same kind of behavior with the M9 as with the PitchFactor. With the heel all the way down, the wah may still be slightly engaged. Then, as I press the pedal, it goes to 0/off, and then back up to its full value as I keep pressing. I am going to test it with other effects/presets.
