These Bart. pickups were sanded down on one side to fit a bass exposing some metal in the pickup. Is this going to effect the tone or performance of the pickup in any way? Here's some pics... imgur: the simple image sharer imgur: the simple image sharer
They should be fine. If they work, then nothing was affected. That's probably just the shielding inside the pickup you are seeing. It's never a good idea to sand down the pickups though.