I'm doing a job for someone, doing the Jimi Star Spangled Banner. Good fun, but there's no money to go into a studio, so I'm doing it at home all in Garageband. I've got a decent sound going (using fulltone wah, sweet sound univibe, mos distortion, a few delays etc, into a POD believe it or not, into the mac). The problem is there's no feedback, and I need to work up some controlled feedback for all the wailing in the middle. (I just can't crank any amps at home to create the feedback, way too loud) Anyone have any ideas how to create that? thanks!