Piezo Saddles in a Telecaster

I have a custom built (Hammertone) left handed Telecaster with Joe Barden pickups. The guitar sounds magnificent just the way it is but I am thinking of installing Graph Tech "Ghost" Piezo bridge saddles and electronics so that I can get instant accoustic sounds on stage without swapping guitars. Has anybody had any experience with this stuff. I would appreciate any do's and dont's.