Not sure what problems Diki had with the Behringer pedal. I have had none. In fact, I think it's the best bang-for-the-buck in the industry. Very smooth and problem free after two years of heavy use. It works much better than the integrated expression pedal on my PK7a pedals (although the 2 (left and right) side switches on the Pk7a is convenient for controlling 'rotor' speed. When not using the PK7a, I velcro a little Roland (momentary) pedal to the side of the FCV100 for this purpose. I highly recommend this pedal if you're not using bass pedals (unless you're using a 13 pedal set like the PK5. Good luck. BTW, I think I may be the only Nord C1 user on the board. Check the Nord forum.
chas
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"Faith means not wanting to know what is true." [Nietzsche]