Sethro, so from that old post you dug up, it could be just about anything! Something that HASN'T been used though would take 440C out of the mix...along with D-2, A-2, and 154CM. I could really get into a BG-42 blade--I've got a Buck Zipper in that and it performs like a lot of the so-called super steels--but sounds like Jerry used THAT one before too.