Got this in the mail today. So far I've only used it with my Mustang and AC15. On the double setting, it gets a real nice velcro-y fuzz.

I'm gonna a/b Muff 1 with my Nano Muff and see if they are the same. The Double Muff is two Muff ODs cascaded. I'll post more later. I'll try and do a clip too.