I am controlling the POD HD500 via DAW while there is playback going on. I am successfully managing to switch between presets (although I must say that latency of switching is a bit annoying, but I can work around that by sending messages a bit in advance). I have a part, where I want to play a whammy (pitch shifter) with expression pedal. I assign it to EXP2. However, when I start playback, both EXP1 and EXP2 become lid and I can not control the expression pedal. I can switch the HD500 off and turn it back on and then I can control EXP2 (without playback), but again once I start the PC sending commands I can't seem to control the expression pedal.
How can I solve that?
Also, what exactly does CC# 59 (the manual says its Exp Toe on/off toggle) do? I cannot figure it out.