I have had an S&W SWAT 3000 for about 1 year. In that time I have had a few complaints about it, mostly with the screws that held it together. On the whole, I considered it a pretty decent knife though. However, today I tested its lock strength for the first time. It has a standard liner lock, so I banged the spine of the blade against a piece of wood. The lock failed miserably. As I continued to reopen it and test it again, I found that the lock got harder and harder to break. Finally I got to the point that I could not break the lock at all. I looked at the mechanism and I think I know why. When I open my knife, the liner barely locks the blade. As I tested the lock, the liner kept moving and got to the point that it was solidly in the middle of the blade. Does this make any sense? Anyway, I just wanted to know if this was normal.