Update. Ok, this seems like some kind of a bottleneck issue. I can send simple toggle like CCs with no issue. I can also send brief CC expressions. But when I send expression messages the latency seems proportional to the duration of the expression. More info. I'm using a custom made midi controller which I can program to behave how I want. Basically it's an arduino with an accelerometer and pressure pads. It sends a midi CC value for each axis of the accelerometer plus one per pad (7 CCs in all). My Zoom pedal can quite happily sink all 7 CC mesages every 5ms with no bottleneck and apply the expression in real time. Can anyone point me toward any info regarding the floor pod plus's response times to CC mesages? Am I hoping for too much? I would very much like to achieve realtime control of as many aspects of the pod as possible.