I recently had a Split J pickup put in my PJ to get it noise free when using the bridge or a combination of both pickups. When I got it back initially to try it, there was extreme phase cancellation when using both PUs so I had the shop reverse the leads on the P-Pickup. This fixed it completely, and it is virtually noise free to boot. However I noticed that now one of my P pickup coils (the one closest to me) emits a super loud buzz when I come into contact with the pole pieces. The J doesn't do this, and neither does the other coil half of the P pickup. I'm guessing this is due to them having to swap the hot and ground leads to combat the phase issues? Before the swap I could touch the pole pieces all I wanted and it wouldn't do this. It doesn't bother me a bunch since I don't play over the pickups. But if it shouldn't be doing this and they managed to mess up one of the grounds I'd definitely take it back.