Mine (from memory, pedal is at rehearsal space) Ass - high noon Bass - hign noon Sensitivity - 9:00 both toggle switches to the right (that's the part I'm not sure about remembering... duh). Not really sure what I'm doing... I'm trying to get max dirt, without getting synthy, and this is where I'm at now (but my main amp is in the shop... using a lower-powered temp. This all may change). What about you?