I have a new Fender Twin Reverb Custom 15 (amp part is identical to TRRI), with the two button footswitch that connects via one single stereo plug. For two reasons, I dislike it. It is way too easy accidentaly hitting both buttons when on stage, and the signal passes right through it, picking up EMI noise on the way. The latter problem I've partially solved by shielding the rubber sole with copper tape, but the first problem remains. Also, I don't really need a reverb on/off, I use reverb all the time in varying amounts. Is there a one-button footswitch that will work on the tremolo only, and keep the reverb always on? It doesn't have to be vintage styled.