Hi - I was wondering if any Music Man StingRay owners out there can help me. I have a 2000 StingRay (4-string, ash body, maple board, 2-band EQ)), and when I play it unplugged I can hear a "rattling" sound. It's not fret buzz - it's more like a vibration with an overtone. I can't seem to figure out what is causing this. The bass does not have any loose hardware, frets, screws, etc. I'm wondering if any other StingRay owners have experienced a similar rattling sound. I don't hear it when I'm play through my amp, but I wonder if whatever is causing the vibration is possibly affecting my overall tone. One more thing - does anyone know the recommended height for a MM pickup (the distance from the strings to the top of the magnets)? Is there a recommended height or is it just personal preference? Thanks in advance for your comments/suggestions!!!