Delay Freakouts: MXR M166 Time Delay vs Boss DM2 vs Seymour Duncan Vapor Trail vs Biyang/Akai AD-8

These are four of my favorite delays for self-oscillation sounds. The sound of a degrading delay in to a distorted/fuzz tone can be mesmerizing. The way the notes trail off and mutate in some pedals is much better than others - see for yourself.