They're on and they sound FANTASTIC! I think they're louder than my EMGs and thicker, which is a welcome thing believe me. The tech messed up though and wired the mega-switch (5 way switch) out of phase but the neck and bridge positions sound excellent. The cleans at the neck and bridge sound very very good and the distortion from the bridge position is nice and chunky, but NOT FLABBY. It's pretty tight and has excellent tone. Leads are so nice- thick and tight and articulate. You probably won't need to switch to that neck position for a real smooth lead sound. In fact, the nailbomb would probably be the best pickup for a single humbucker guitar. So much depth to them. They really are very good. I can't wait until they're set up correctly so then I can really do some shredding/wood shedding.