I just strung up a new partscaster I built for a friend and after I got it playing, I kept hearing this "ping" when I hit the neck pickup cover with my pick. It is NOT subtle. The pickup sounds fine, but I don't recall it being this microphonic in its original home - a recent Squier Bullet. What I DID do when I swapped it to the new tele is set it up with a 4-way switch. I cut/removed the tiny ground wire and ran a ground wire to the cover, and installed normally. Is my memory bad and I forgot how microphonic it was, or is there something in grounding the cover that can cause this? The pickups sound great, but I tend to play and strum a lot over the neck pickup, and every time the plastic pick hits the cover, I know it. I tried lowering it as far as I can without much help. Any suggestions other than using another pickup? Are Bullet neck pickups particularly microphonic?