I recently got this controller to use with my midi gear(obviously). In particular a Rocktron multivalve I've used for years now with a Digitech control 8. I decided I needed to be able to use controller assignments to make things easier. Anyway... heres my question. Can I use my ernie ball volume as an expression pedal?? I assumed I could, but I've had no luck. Anyone here familiar with this piece of gear? We have'nt any Rocktron dealers nearby. :eek: Thought I'd try this. :)