I'm not that happy with superglue and charcoal. It works yes but is a mess and always seems to leave a brownish sheen when finished, looking like all the oxidation was not removed. This may be from me doing something wrong but I'm just wondering if anyone has found a better solution. I know there are tinted glues like the one from stewmacs and also loctite. I don't know if the rubber strengthened ones would work well.