CharlieB and all The guitar I have an 85' Gibson Explorer 425 (3 uncovered PUPs, 2 single coils) with a humbucker in the bridge. Has three separate on off switches instead of a 3way toggle. All the switches and the jack never gave me any problems, however I think once I plugged it into a different amp (nicer tube amp) and I think it popped unpleasantly during plugging it in, changing cords didn't help, but I mostly play out of headphone amps or small practice amps so I only noticed that once. It sports a Kahlar Flyer trem instead of a standard stop piece and bridge. Ebony fretboard with dots, low wide frets, all black hardware, and a sparkles metalic gray paint job with lots of clear coats. The problem Low output humbucker I like Gibson guitars, especially the old style pickup setup, i.e. two duel humbuckers as in SG's and LP's, etc. But my guitar does not sound good like most Gibson's I've played. The only guess has been that the humbucker is a "Dirty Fingers" pickup, but I have no confirmation on that. Gibson customer service does not seem to know either, but I think that was where the guess came from. If I recall correctly, the Dirty Fingers are supposed to be a higher output pickup, but to my ears, it is rather on the lame side (quieter and with less punch), it does not have as much bottom end as I would like, it's tone focus seems in the upper end. One suggestion was that maybe it was wired incorrectly at the factory or that it's out of phase. Discovery I would like help to diagnose if anything is wrong with it. Oh I forgot to mention, it comes with a single coil tap that works correctly the best I can tell, "but" the single coil mode is even lower in output and does not enhance the sound/tone, so I stick with the not quite as lame duel humbucking mode. Normally Gibson makes great pickups... In comparison, the two single coil pickups seem to have more life in them and especially the middle one seems to have a better or wider tonal range, although it's not a duel humbucker and I prefer humbuckers over single coils, even though (to my ears) these sound good for single coils. I've never taken it apart nor had anyone else do it either, never messed with the pickup shrouds, it has no pick guard and the control panel is only over the pots and pup switches. I do have a digital variable ohms multi-meter and am willing to do what it takes to breath some life into this otherwise enjoyable guitar. Maybe it's just a wiring problem, or maybe the guitar wood and construction is not worth the effort, or maybe should I go after upgrading the pickup to something else. I would consider a 57' classic or something "PAF" similar. Whatever works best. Thanks in advance for your time and consideration.