First let me say , I've restored the edges of more than 20 razors , and some were easier than others , but I've been working on a Shumate "For Barbers" and the steel in this razor is harder than I don't know what . I also restored another Shumate "For Barbers" and it was just as hard as this one is . Has anyone else had this experience with this or any other Shumate razors ? Are all Shumates this tough ?