My HD500 pedal doesn't seem to increase the volume smoothly between 0 and 255...it seems that the first half of the down press doesn't do much, and most of my volume controlling happens during the second half of the down press.

I've recalibrated the pedal several times, which makes a modest difference, but the recalibration doesn't seem to "last".

I recall with my X3Live, I could easily change the pedal's min/max, from 0 - 100% to say 40 - 100%, which gave me better volume control, but I can't figure out how to do this on my HD500.

So, any ideas on this, and on my continued need to recalibrate?