Everything is in the title.
I'm building a couple of pedals that are using or could benefit from an expression pedal.
I'm guessing that a from scratch build recycling another wah shell but why not trying a 2 in 1?
That may mean a weener wah II with an optical pot, not very mojo but i don't care for mojo. It would be as if i was a lost billionaire getting out of a desert and staring at a bar.