I'm thinking about getting the Boss RC-20, mainly because of it's 5 min looping time. Of course, I'll use it for bass and guitar (gasp) but I'm wondering if this will work: Mike my drummer's kit into my PA. Cable the PA out to the RC-20 and thereby get some drum loops. Now I don't need my drummer (don't tell him) everytime I want to jam with beats. Anyone tried this with any looping devices? Will this work? Any better ideas? I know it won't be great drum sound but it's better than none. Thanks for any suggestions/help.