i have a v5 big muff that i’ve been thinking about modding for a while. what i’d like to do to it is add an expression pedal jack that goes to the tone control. i haven’t seen anybody do this before, but i think i have a pretty good handle on how to do it. think maybe i’ll get a weird wah sound out of it.

anyways, i was thinking of using a an ernie ball vp jr, which has a 250k pot, where the pot in the pedal is 100k. i guess i could wire a resistor inside the volume pedal, but i don’t particularly want to do that. it got me thinking, though – what happens if you swap the tone pot out for a higher value. once you sweep above 100k, do you just get more treble? or is this going to have an effect on the sound at ever position? and what happens if you do the same thing to the sustain pot? if i’m putting the jack in anyways, i might as well wire up a switch so that you can pick which knob the rocker pedal controls.

if anybody’s got any experience with pedals that are altered in this way, or any conjectures about what one might sound like, i’d be very interested to hear. thanks in advance.