I've had it for 2 days short of 2 months now. I've taken it apart several times, though.
I can see that the probelm is that the lock bar doesn't sit flush with the scales (and therefore the blade tang). It isn't making 100% contact with the tang, so it's allowing that bit of room for movement.
There hasn't been anything I can do about it, either. Every time I put it back together and make sure the lock is exactly fitted to the tang, it just reverts back to the same state next time I close/open it.
So if you grab your knife, put your thumb on the lock bar, put your pinky through the hole and pull, you don't feel any movement of the lock bar on your thumb?