It's fine, it'll take rockwell 61 without catastrophic failure in sane use *allegedly*.. sr77 for big knives and ATS34 for medium or smaller ones perhaps? I've got a DF on order and sr77 suits it right to the ground.. An ATS34 Shaker or S4 though, that's a fine thing! <img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" />