My Moog EP3 exp pedal goes from 0 when upper poisition to 100 in the middle and back to 0 when botton position. I would like for it to be 0 on the heel and 100 on the toe.
Are you using a TRS cable with the EP3? Have you experimented with the polarity switch on the bottom of the EP3? Disconnect the pedal, set the switch in the other position and reconnect the expression pedal. See if that works.