How do you stop a brown patina from devolping on a new carbon razor tang?I have a new Dovo BQ and in 7 months of use and oiling with camilla I've hade to repolish the tang 3 times to remove my finger prints in brown patina.Do you think Ren wax would work better?Blued guns end up naked and brown in my hands,thus all my carry guns are stainless,aluminium or plastic.I have been using a gun polishing cloth to take the brown off,but I'd love to stop it forming in the first place!