What is touughest SY blade to convex on a belt sander ? It looks to me like some could be very tough <img src="/ubbthreads/images/graemlins/shocked.gif" alt="" />. Vic/ Tolly/ Jeff ? Or- maybe is a dumb question <img src="/ubbthreads/images/graemlins/confused.gif" alt="" />? Just looking at different size/ shape blades looks like could be very difficult. Great work <img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" />