This pedal is VERY SENSITIVE to your guitar volume : if you turn down a Strat's volume to about 7, there is very little distortion. At 9, it is a nice smooth bluesy tone, like Clapton in Cream. At 10, it is quite fuzzy, especially if you have hot pickups or humbuckers. Also, if you use another effect before the fuzz face, it can make it get a nastier distortion
Sun Face page at AnalogMan's website...