I've never held one of the CRKT Kasper folders, so I can't say. However...
I am the proud owner of a Crawford KFF, all titanium. Whoo-hoo! It's my favorite folder, mostly because of the wonderful handle, which sticks to your hand like how my underwear sticks to my butt on a hot humid day.
The recessed liner lock, IMO, is strong enough without the LAWKS system, on Crawford's models anyway. For the CRKT, hey, why not? I'm buying one to use as a folding trainer anyway...maybe one more for a 'disposable' knife. If lock failure is such a big deal, then my advice to you is...
CARRY A FIXED BLADE. That's what I do.
Ever since I received my Polkowski Scorpion, the KFF and Scorpion have been my constant companions, keeping me company in my miserable life, bringing me joy in an otherwise joyless world...making me dance the Riverdance! WHOOPEE! Look at me, dancing and prancing with my knives, singing and laughing HA HA HA HA HA HA
(Again, we apologize for MrG's crazy outburst. He hasn't slept in three days cause he's been too busy slashing his cutting tree in the basement and drinking pots and pots of Starbucks coffee.)