Lockbacks are crappy locking mechanisms for a folding fighting knife. Okay for a picnic, fugheddaboudit for a save-your-life situation.
Though I haven't even come close to evaluating all the new-fangled locking mechanisms for folders that are on the market today, my favorites are the the old standbys, the so-called "linerlocks" (also sometimes called sidelocks) from highly-regarded tactical knife makers: Benchmade, SOG, etc. Old-fashioned, I guess.
For fixed blade, it's impossible to beat a Ka-Bar for value and its almost idiot-proof indestructibility. imo.
Plus 1 on liner/frame locks.
Another thought..
I’ve got several serrated blade knives. I’ve yet to find them equal to or better than a straight blade.
There may be an instance or two where they are advantage but I’ve not found it.
All my purchases from now on will be straight blade.
JMO