I've been experimenting with the wiring of my Model J PU's One thing I notice constantly trough the wiring, is that on the neck pickup, when my thumb hits the coil screws for the E and A string I get a nasty buzz (and it actually happens while I play, since I usually rest my thumb on the pickup and tend to slide onto the coil) The strange thing is that it is only on those coils, and only on the neck pickup, I can touch every other coil without problem. I've shielded everything really well, and the bass is otherwise dead silent, both when I touch any part of the metal and not. It's wired like this now: http://www.dimarzio.com/sites/default/files/diagrams/pj_2v.pdf I tried both parallel and series wiring within the pickup itself, same results with the touch-buzz. I'm using a 500k dimarzio pots for both PU's. Other thing while I'm at it. I tried buying a 1Meg pot to use as a tone control, but it's giving me really little results, I wired it like that: http://www.dimarzio.com/sites/default/files/diagrams/pj_2v1t_std_series.pdf With a 47uf cap. I was getting some change, but really small, I thought the 1Meg cap would make the difference more noticeable. I also tried wiring both my pickup straight to the jack output. To me it sounds exactly the same as going trough the volume pots (I made recordings before/after) but everyone keeps saying "500k pots really helped with brightness". Do the pots really matter when the volume is turned all the way up ? (I always play with bass volume at 100%, usually both PU's at 100%) vs going straight to the jack. A part of me really just wants to find blanks for the holes on the control plate and skip all the buttons (or maybe add a DPDT on switch) I know this post has gotten pretty chaotic, hope you bear with me.