RE-20 owners, what's the best expression pedal to use? In the manual it says not to use anything but the Roland EV-5 or you will damage the pedal. Is that really true or are they just trying to get you to buy their product? I tried the boss ev-5 and it was not very good. The active range of the pedal is only about 50%, it's too small for my foot and it's cheap plastic. I then tried to use a goodrich volume pedal with insert cables and that didn't really work. The range of the pedal was all in the middle of the pedal, so once you had it depressed more than half way it was the same as having the heal of the pedal all the way down. Any help would be appreciated. thanks!