Hi TB, I recently made a jazz/precision/jazz bass and am having problems with the volume pots. I have it wired vol-vol-vol(push/pull to either engage or bypass the preamp)-preamp-jack. The 2 normal pots are the quarter sized cts 500k pots, and the push/pull is a bourns. The problem with all 3 is that when you turn to the last 1/8 of a spin, you get a huge volume spike. The pickups are almost inaudible up to that point though. How do I fix this? Thanks guys.