I've seen guys with the yellow strap green ring friction saver for years and no problems. But Just this summer I bought an AFS with alum. rings smooth works good bot it has the silver chrome finish that my line has started to wear through now its finish is worn and rough is that normal? Has anyone else had this happen? I'm not a very agressive climber average at most and I have only run new clean lava and blue streak lines through it. Any input I can get is great. One last question is why don't they make an AFS with steel rings?