I have the 3 hole version. Thanks for the info. I just got a BBQ yesterday from Travis and it really rocks in my Hamer Chap Custom. I might need to swap it out for a test ride in the Dutone! I know what ppl say about some Piezo units sounding bad. I sometimes cringe when I hear a pro performer with a terrible, tinny acoutic tone. But, I dial mine in to sound quite realistic and I'm pretty picky when it comes to tone. Anyway, the Dutone is nice for that but man it can really rock too (high gain metal). I'm impressed!!