oh, I also have a Guyatone micro flanger. The bypass is a tone sucker and the sweep can be heard prominently even when not playing. BUT, the flange sounds excellent, upfront, cutting, and noticable. This is my fourth flanger. I like the flanger sound of the Guyatone better than the Maxon FL9, EHX stereo electric mistress, and EBS unichorus. Flanger is rarely used effect so it's nice that the size of the pedal reflects the frequency of how often the effect is used.