Hey all, I was wondering if anyone might have information on what kind of alloy the metal knobs and/or bridgeplat on a the American Specials might be? I'm developing a theory that my long term dermatitis might actually be a nickel allergy. I have recently been using pure nickel strings. A practice I plan to discontinue immediately. I am wondering about the hardware though. Any info that would point to how much nickel might be in it, if any?