My CH Pro pedals started spiking and have become non linear. I have to decide if I want to repair them or get something else. What I have read about the Simpeds sounds good but they don't seem to be available.
Jiggle the cable at the point where it goes into the pedals on the base. There is a design flaw in the Pro Pedals (all versions non-USB and USB) where the wires get pinched where the cable goes into the pedal base. Sometimes jiggling it gets the wires free until the next time they get pinched.ack-ack