I've been looking into getting a Piezo into my Yamaha SA2200... but I really can't find out what that really entails. It seems like I'd be using a Piezo Bridge... but then thats about all I know. So here's the question. What exactly needs to be done to get a great Piezo set up on a semi-hollow? Will there be lots of drilling, etc? How much will a great set-up cost? Thanks a bunch.