Not sure where else to post this. I've got a TRB6P with Bartolini p/us and the Aguilar OBP-1 preamp. took it to the gig tonight, it buzzed through the amp. if I touch the pots, buzz goes away. if I touch the barrel of the cord, buzz goes away, if I touch the *rack mount pre*, buzz goes away. Didn't seem to buzz with the neck pickup pulled down. ok, guys, I'm pretty damn good with electricity.....but what did I miss?!?