I know there is a few of you in here and since you talked me into buying one, I need your help. What MIDI pedal do you use to control it? What do you use for the expression pedal and what effects can it control? Wah, Vol? Can you use the expression pedal as a volume control for the rig? And can this be done on the effects loop? I hear that if you put in a volume pedal on the loop it controls the "blend" of the effects instead of the overal signal volume Thanks!