Now before this gets out of hand (or is it already too late for that?)...
First let me say that I really don't want to get into an argument with you, Nemrod, because I have read a lot of your posts, and I have a lot of respect for you. I don't like it when you refer to "my gurus" because that implies that I just swallow up any hogwash without thinking, and I'll bet that most people who know me would not characterize me that way.
etc and etc------
Seventh, if one of the reasons the OP wants to use his Ka-Bar is that he doesn't want to buy another knife, then the "20 to 50 dollar" Ebay Tekna (which I bet is a pretty darn good knife, by the way) MAY be more than he wants to spend. Which may or may not be irrelevant, because it may be impossible to get a decent dive knife for less. Most dive shops have a bunch of old used dive knifes for pretty cheap.
And besides, I DID say that I was shopping for a bigger knife! Sheesh!