There is a pronounced lag on the expression pedals that I can't seem to get rid of, I tried calibrating, etc. and haven't found any solution, I'd say its atleast 100ms and almost seems to be a damping type of effect, as if the buffer of cc signals was stretched somehow? Damping is turned down on my settings in the axe, and hooking in a pedal into my axe's expression pedal port works fine. It also seems that all the buttons are working fine, no latency there.