Hi guys, I'm stumped.... 1966 Jazzmaster, original pickups..... different strings are clearly different volume, open string or fretted anywhere - doesn't seem to matter. Only when plugged in. Both pickups same problem. Sounds fine acoustically. Low E - pretty good A - a bit dull D - a bit dull G - loudest (about 5 dB louder into audio desk) B - louder than the others high E - dull Tried: - different bridges - original / mustang / mastery - chunk of foam to prevent resonance behind the bridge - tucked the G under the string tree to prevent resonance there and change angle over the nut. It was refretted and nut replaced a couple of years ago and I've never quite been satisfied since, so I have my suspicions.... Any ideas?