Hi, again.   Not sure about your Ernie Ball EXP pedal, although I have seen that thing about the volume at 100% at halfway then going back down to zero. There are many threads on here covering various expression pedals for use with Helix units. Some are really expensive and some are much less - for example the M-Audio EX-P Universal Controller Pedal. I have 2 for my Helix floor and they work just fine with the polarity reversed in the Global Settings. I'm studio based so I'm not sure h
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