Please excuse these barbarians Simon Peter (by the way I LOVE your book, although I think the lead character should be a girl)

Everyday I try to help folks who simply don't know what to use ...a finger? Maybe. A thumb? Oh absolutely! A Fist? Well I have to tell you that you're the first to suggest a fist. I'm afraid you're going to get a lot of muffled notes using that technique though. There are always exceptions of course. Catspaw has been using TWO FISTS for years, and other than the resulting sound.....his playing is great.

Glad I could be of help.

Ricky