I'm not an electrical guy but know some talented folks frequent this place... I'm wanting to know if there is a way to mod a pedal (anything with a volume pot) so an expression pedal could control the volume. Thinking running leads to a 1/4" jack and plug to a VP pedal. I usually run a Fulldrive 2 the whole time and prefer running the volume on pedal vs pre or post pedal. Any ideas?