The complaints about the liner lock's reliability should not be addressed in the compression lock though. If your fear is poor engagement (or inconsistent lockup), or that in twisting the blade stuck in something, the compression lock should be dead even with a comparable liner lock. It does, however, address the issue of grips sometimes unlocking the knife.
This is off topic now, but I have a problem with this statement. It seems that you are one of many who don't see the strength and reliability differences between a compression lock and a liner lock of equal materials and dimensions.
From what I can tell there are two major design advantages to the compression lock, strictly from a strength and reliability perspective.
The first one is simple. A single layer of bricks in a row will be much more stable at supporting weight from above than a 10 foot high wall made up of these same bricks. Added length increases chances of buckling under any conditions, but specifically when the load shifts slightly and there are slight angles involved, which is the case with a liner lock. Hit the top of the wall with just a 5 or 10 degree angle, and you will likely topple it given sufficient force. That one layer of bricks can take it all day long. And please don't try to say that liner locks have pressure on them along a perfect axis through the length of their body.
So the shorter the better, right? Well that would be the case (up to the compressive limits of the material), if not for the design of liner locks. The best liner lock would be short, and pivot directly under the blade, with zero angle at the tang. Realistically, however, a shorter lock would require a more severe angle of the tang cutout, as the lock needs to fold out of the way of the blade and would be fixed to the handle one way or another. This means a shorter lock would be working against itself in terms of how much of the blade's pressure is being transmitted through the lock as opposed to trying to slide the lock off the tang (like punching someone at an angle) or push the lock downwards (the closer the force applied is to perpendicular, the less resistance to fold).
The second reason for increased strength and reliability is even more important than the first. The direction of the forces applied compared to the axis that the locks pivots on to open and close. Liner locks (getting tired of typing those words) have force applied in a direction perpendicular to the axis of the pivot. Compression locks apply force on the lock in a parallel direction when comapred to the axis of the "hinge". The pivot is slightly offset from where the force hits to allow closing.
What does that mean? Try standing on a 1 foot by 1 foot piece of plywood that's secured to the ground using a hinge, allowing movement to either side. Not gonna be so easy unless you're in Cirque du Soleil.
Now try the same thing with the wood hinged to the wall, not the ground. Different axis. Parallel instead of perpendicular now, in terms of force vs pivot line. Won't be all that hard to stand on.
But a blade doesn't need to balance you say? As I mentioned earlier, it's impossible to have the forces go perfectly down the liner lock and even if they did, that's at a different angle than the blade anyway (which is ultimately applying the force).
But no matter. Let's say the force will be perfectly centered and balanced. How stable will that weight be on the floor-hinged piece of wood? It would be a circus act again, in comparison to the wall hinged plywood.
Now let's incorporate the first point to the second. Depending on models of either lock in question, the lockbar of a liner lock (not even including the portion of the rest of the liner below it that is also under stress) is somewhere between 10 and 15 or 20 times the length of the compressed portion of the compression lock. Let's take the low value and say 10, because I eyeballed only a couple knives.
Back to the hinged plywood. Would you rather support weight (provide a force in the opposite direction, AKA save your fingers) with a 10 foot high piece of plywood hinged hazardly to the ground, free to crumple or simply fold out of the way, nevermind keep the forces trapped upon the top of it (you can't stand on a one foot piece, nevermind 10 foot), or support weight with a much shorter "beam" of sorts, the one foot piece, hinged to the wall?
The lengths and directions of applied forces tell the tale. A compression lock is nothing like a liner lock from a design point of view. It uses the same parts, but in a much more efficient and safe manner.
And to think many knife people still believe it's just a liner lock on the back that happens to unlock easier or with more difficulty, depending on who you ask. That is simply a side-effect of IMHO, one of the best lock designs to date.
I'd love to hear if anyone thinks I'm off on any of the above or if I missed a major engineering advantage. Peace.