So I've built myself a nice Jazz bass from parts. While I was purchasing the essential parts, I also bought a Reggie Hamilton pickguard from Ebay. I believe it is a WD Music build, though I don't have it to hand. The pickguard fits the bass body perfectly, but of course the body needs additional routing for the P pickup up front. I like the tone of a P bass. I also like the tone of a Jazz bass with the bridge pickup solo'd and the two pickups on full. I'm not so sold on the tone of a solo'd Jazz bass neck pickup. I would rather have a P pickup in the neck position, but I don't want to loose too much of the classic both-pickups Jazz tone. I've tried watching videos of Reggie Hamilton basses on Youtube, but they have a very bright active tone that sort of masks the natural tone of the pickups. In short, does a PJ pickup sound close enough to a JJ setup, or is there a fundamental difference in the tone?