[Retro Ron]

Good thought exray but the slugs are snug. There are still a few moulded mica caps across the slug assembly I didn't touch. I wonder if one of them has a mechanical defect? I just don't trust old mica caps anymore. I suppose I should check whether the trimmer screws in the end of the slugs are too loose. This just seems like an electrical problem instead of a mechanical problem because of the behavior. There are just no mechanical stresses when the problem occurs.

Thanks,
Ron