So I've been bending off of that fishtape schematic too. My first desk was fried almost instantaneously, don't even consider bridging the “hiss/loop (crashes)” with a wire. After that I stayed away from the other glitch labeled "sensitive/momentary". My second desktop includes the key press looper, distortion and the main glitch (red dots), and a power led pilot light running off the toys battery. I was actually blown away by the results of the single glitch. A lot of time it crashes the toy and needs a reboot with the green on/off switch, but other times it creates unbelievable on going patterns and streams. The most common streams consisted of a “run through” of sound that was random, alphabetical or categorical. Another common find was compositions containing one or a mix of the following: word, sound, number, letter or music. The most typical glitch fit was the stuttering and garbled speech. The best finds are definitely the drones (yes a few good ones), ambient noise, and a few “hidden” streams with aleatoric music and glitchy compositions. The most awesome streams I’ve found are like nothing I've seen on you tube or heard anywhere else on the web!
This is definitely worthwhile project. My tests revealed its very fragile but has several some streams worth finding. If your thinking of approaching this project have a 1/4 output installed and a recorder handy, because once this is freshly bent it becomes very delicate. Btw I also brought this desk back to life after an insane session that ended in one of the deepest crashes I’ve dealt with.