[sdiy] suggestions for foot control

[Spencer Johnson]

> Guitar volume pedals will have more useable travel on the pot. The Ernie
> Ball brand pedal is a good choice.

see, that's a good idea, but i'd like to be building my own foot
controls for usage on a lot of different types of components (i.e.
foot controllable distortion, flanging, gain, sensitivity controls,
etc.), and, as some of these would be attempts at commercial
production, buying a foot control from someone else just to implement
with my own distortion or whatever isn't really viable. i'd use that
idea if it was a one time thing, though.