Dist, wah, chorus pedals

yeah, the same with my DS-1 goes for the Seymour Duncan TweakFuzz...if your gain and volume are spiked, it will squeal and howl nad make all kinds of racquet. i keep the gain below half and the volume slightly above half and it's pretty decent. prolly not worth the $100 it cost in the long run, but not a bad pedal. Oh, and if you use it with a Wah, forget it. you get a high pitched noise when you rock the wah back and forth. annoying. i have them on 2 separate circuits now.