I have now eliminated all linerlocks from my sole-knife carry rotation.
None of them hold up, even $600+ custom ones, EVEN after coming back from servicing and tweaking.
As many have said before me, it's not enough to test your linerlock once and put it to use.
Their time-to-failure is extremely rapid -- they will be fine, then just one day, slippage.
Some people ask, when will you ever hammer with the spine? Mine have slipped and closed accidentally while I was wiggling it through 2-ply cardboard.
Lockbacks are too rough and the springs usually too tight. I'm not terribly fond of the AXIS only because it gets gummed and gritted up really quickly, especially with tip-up (pivot-down) carry. Furthermore, I've had bits and pieces of one rust on me when I was at the sea for ONE day (granted, my Emerson stained some, but it cleaned up nicely.) I'm loathe to see how the steel-filled portions of the AXIS would fare over weeks.
A Spyderco ATR might do the trick for you, or if you don't mind waiting, the Spyderco Paramilitary (also compression lock.)
You can also check out the new Microtech Mini SOCOM Elite -- an aluminium framelock with steel insert. It has a lot of potential.
Full disclosure: I carry an Emerson Commander, but as my "light/daily duty" knife, accompanied by something else, usually a BM 806D2. The Spyderco Gunting has moved into being my conversation piece. It has held up to just about anything I can throw at it. If I have my "man purse" with me, I can slip in a fixed blade... much, much better (especially if the fixed blade is a 4" bladed, 1/4" thick piece of O1

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-j