DG9645

try this-- when you first turn on the helix, rock the pedal full forward and full backward repeatedly until it finishes turning on. when the screen shows you can stop. somewhere along the line I heard this was the key to calibrating the helix onboard pedal and it seems to work for me every time. Sometimes I use a mission pedal too, but still calibrate the onboard pedal while powering up. the outboard pedals don't seem to need calibrating. hope this helps!

I've got the same guitar and working on patches for it too. I have a patch set up with the mag pickups going into the guitar in jack, and the piezo going into the auxiliary jack. so I can switch quickly between the two. Basically each input is its own chain to the output. For the piezo side I added York Audio acoustic guitar IR but I'm still working on deciding the hi/lo cuts and effects for that side. It also has to be boosted in volume quite a bit to even out with the mag pickup side.