How effective is the Boss FV-300L: http://www.musiciansfriend.com/srs7/g=home/search/detail/base_pid/151367/ ..For using as a volume pedal for active basses? The idea is, I want to kill two birds with one stone by using this pedal as volume and as expression for other Boss effects, like the PH-3 and the AW dynamic wah. However, this volume pedal was designed for keyboards so I'm thinking there may be a problem. I was also a little confused on what cable I would need to hook up from the Boss stomp-pedal to this expression pedal. As far as I know, I just need a standard 1/4 stereo cable.