Yeah, I was strongly suspecting that... I'm not that good with DIY, but my soldering is WAY better than that. It was hard to believe that such a good sounding mic would have that awful work from factory...
Thanks for the tips! I'm not going to touch the capsule, as I've never worked on one before, and don't want the C48 to be my "training" capsule.
If you have the time and don't mind doing it, I would appreciate pictures of the innards of a good C48