I'm back after a year with a little more info on my buzzing Ultra Jazz pups. They act like they aren't grounded, with a buzz whenever I touch the exposed pole pieces, and not the strings. Here's the twist, this only happens when I touch the pole pieces on the bass side. The pickup cavities and the control cavity are coated with conductive paint. The back of the pick guard is, too. I've checked the wiring against the instructions over and over. The Ultra Jazz pups have two small pups end to end in each cover. Apparently, the bass-side pup in each cover isn't grounded. He'p.