Yep, it does sound like you cut through the temper. The core of the Ka-bar is supposed to be softer, so the bounce back. I'd buy that theory, no doubt about it. I have one that is only used as a thrower- it's previous owner let the handle degredate tot he point it solid enough for nomral use, but blade is good after thousands of throws. I do know that a real Ka-bar will survive things that will kill a Camillus clone.

None of mine are shorties, though. It might be something odd to them, or to your lot. I know every manufacturer has funny lots every so often. I remember when Gerber had more funny lots than good ones. <img src="/images/graemlins/smile.gif" alt="" />

I'm not sure what you mean by convexing. I sharpen them like I was taught to sharpen, and it works fine, but that term wasn't one applied. I might be doing it and not be aware.