Hi, I've just bought a Moog Low Pass Filter and I need an expression pedal, preferably cheap, durable and smallish. I ordered one from my local Moog dealer but they have none in stock and they say more will come in at the end of April, I am the most inpatient guy ever so I need an expression pedal!. I believe the moogs need a special type of expression pedal, am I right? If it is some different kind I need please could someone explain to me the differences in the types (in total newbie language please )? Thanks! Max.