I don't think 440c over Aus-8 is much of an improvement to be honest, if at all. The difference is all in the heat treat and Aus-8 can take and hold an absolutely brilliant edge. The subcom is hardly a heavy weight anyway so not sure about titanium either!

I like the one with the wharncliffe type blade, but I really don't need another small locker.

Incidently LX, have you picked up a Coronado? That is a hell of a lot of knife for the money. I recommend every one get one!