Having troubles with your Digitech RP-200 tabbing up and/or down?
The solution is simple..open the back side (don’t worry there ain’t much in there). On the
Printed Circuit Board you’ll find two rubber knobs. The most likely cause of your
problem is the fact that these knobs don’t provide enough support to force back the
PCB. I think this is a construction defect, but nevertheless by adding two small pieces
of rubber to the already excisting pressure points the problem should be
solved. I use Nike anatomical Arch support so anything goes basically….