I thought mine might have been due to a bad connection in the selector switch but I just checked and it's fine. I'll try cleaning the volume pot although I'm not sure how to go about that. I still hate to drop it off aty the tech because then I can't play it (I mostly use neck pickup anyway).
In the meantime: The neck pickup is angled parallel to the strings so that both sets of magnets are the same distance from the strings. The bridge pickup, however, sits parallel with the body, so the set of magnets closest to the bridge are nowhere near as close as the other, and so overall this pickup is further from the strings than the neck pickup. I can tilt it with my finger and that improves this position (I haven't tested what it does to the volume yet) but I'm wondering if I should be re-seating that pickup. Any comments?