I've got this oily type stuff on my hardware on my guitars. I want to say it looks like pitting, but most of it can be rubbed off. What remains looks like pitting but I think with the right solution it could come off. Anyone know what I'm talking about and how to clean it? I could take pictures if you need to see it.
try Brasso cleaner
I have a problem with the hardware on the Ibanez RG guitars...it may just be that my skin oils react weird to metals, but I dunno. I actually have what looks like pitting on the EDGE bridge on one of my RG's that looks like my thumbprint where I touched it and forgot to wipe it down, then got it out a few days later and I can't get it off. I'd be interested in any good solution for cleaning hardware, as well.