The characteristics of the squarish sharp-edged chip from the S30V and the suffusing spread of the torn-out section of INFI pretty much match the damage I've seen in my S30V folder and beater Busse chopper. I don't see Jerry Hossom's observation of damage as out of line with comments and pics that Jerry Busse posted here a long time ago of damage induced from striking the edges of two knives together.
Jerry Busse's comment was that the critical point is to pay attention to the relative thickness of the edges contacting each other, since the damage level will largely be influenced by the geometry of the striking edges. The thinner edge of the two sustains the damage IIRC.
(If any of you old-timers have a link to that thread from the Boss Hog, please post it. TIA.) If you consider that Jerry H's nail is much thicker than even the shoulders of a knife's blade, let alone the edge itself, the nail is the beefier item and less likely to suffer damage per Jerry B's observation. Also, the 45* nail angle is, as Jerry H noted, set up to induce unusually strong lateral force on the striking knife edge, thus likely to inflict more damage than will come from most usage of a knife.
Also, I recall Jerry Hossom having gone a few rounds in the Internet maelstrom on forums, including some protracted or vitriolic slug-fests. So I can understand his hesitation and aversion to get involved with anything smacking of another such exchange. The man is a premier maker in his own right, albeit of knives with a much different role and purpose than our beloved INFI sharpened prybars, who has given a lot to the community of knife knuts through his freely offered knifemaking and maintenance advice, tips, and techniques to those of us who lack his years of handling steel. His workmanship that I've been lucky enough to handle at various shows speaks for itself..... IMHO he's a craftsman of high standard whose work I would be proud to own.
And like the rest of us, he's free to pick which online conversations he wishes to indulge in.
