They make a pedal for practically everything under the sun, so when searching for a sustain guitar pedal (if you search "sustain pedal" you'll get nothing but e-piano results) turns up basically nothing... well, what exactly does that mean? My guess is that sustain originates from the guitar physically, so you can't really do much about it with pre-amps or pedals? But then again, I happen to know that there's such things as sustainiac pickups and such... but again, that's not a pedal, and even though I'm very interested in these pups I am really kinda looking for a pedal solution, if there is one. I do take all my guitars to get pro set-ups, which I know is often recommended for improving sustain. After learning that high pickups can harm sustain I've double checked that they aren't too high... It could really be that my expectations are too high, as I listen to a lot of stoner/doom metal bands, and they are probably rockin all kinds of nutso pedals. I've noticed that some pedals have "sustain" as a knob on there, specifically Big Muff Pi I know has it. I noticed that compression pedals seem to have sustain knobs as well. Now, I am and have been interested in getting a Big Muff Pi; however I would like to be able to increase my sustain without necessarily fuzzing up the sound too much. I'm not at this time particularly interested in a compression pedal, I don't play much "modern" sounding metal... (or am I mistaken for associating a compressed guitar sound with modern metal?) but can it help me get some sustain without compressing too much? Any other pedals/ categories of pedals good for increasing sustain?