i think the muff is based on the big muff with tone wicker with the tone off, ive got the tone wicker pedal, and side by side they sound fairly similar to me.
The one in my guitar is a bit more bassy, but i guess thats the tone section.
ive been playing it all week, the fuzz is great and im loving the boost when used with my overdrives and distortions
I like this, nice warm fuzzy tone and all the controls in one place. I was watching an old Hofner Ambassador on ebay that had a fuzz and wah (with little finger control) built in - should have bought it. The idea of being able to just bring a guitar somewhere, plug in and have all these different tones available without having to find a power source, use several cables, kneel down and adjust pots......that really appeals.