Hey all, I've noticed that my Supernils A and E are becoming discolored. Actually, it looks like some type of oxidation or something becuase they turned from silver to like a copper color. I've also noticed that they did NOT become discolored around where I pull and slap them (around the end of the fingerboard). and where I predominantly finger the notes (first through third position)Can I change this? I was thinking about rubbing alcohol on the strings but I don't want to hurt them (actually, fairly soon i want to replace them all together but I'm stuck with em' for a little while). I haven't noticed any ill effect on their tone (of course I could just be getting used to them). I just don't like the way it looks. Has this happened to anyone else? If so, what do you do?