I have a Moog EP3 expression pedal. When I connect it to my DS1's expression jack I get either very erratic input or none at all – in fact sometimes it acts like it's shorting out and the DS1 will turn off until I unplug the pedal. The pedal works fine with other units that accept CV. It happens whether I switch the polarity on the unit or not.
I'm wondering if it's an issue with this pedal – the Wiki says "Roland-style" pedals – are there differences between a Roland and Moog CV expression pedal and if so is the DS1's behavior consistent in response to an incompatible pedal?