I have a Yamaha BB414 and decided that my Nordstrand NP4 needed to replace the existing Yamaha P pickup. The Yamaha P sounds good, and is nice blended with the bridge pickup, but doesn't sound enough like a P for me. I had this NP4 laying around, so I put it in. The wiring configuration is vol/tone/3 way switch. I installed the NP4 and, of course, it sounds great, but when blended with the bridge pickup (switch in middle position - both pickups on full) the tone turns really thin, and it almost seems like the two pickups are cancelling each other out. Not good. What could be causing this? Is there any way to solve this problem?