So, here’s the deal on mine. Lg 31 Natural Canvas Micarta Double Lug.
The “rock” can only be achieved on mine by using the palm of my hand to press with excessive force. Harder than any folding knife should ever be stressed in that way. I wouldn’t necessarily call it a “rock” but more of a springy feeling “bounce back” if that makes any sense. I don’t know if that’s considered “lock rock” or not. It’s that feeling when you’re really pressing on something big/hydraulic with a lot of force, that doesn’t want to be pressed on like that. It eventually gives on its spring/pivot point, ever so slightly, like, “back up, you ain’t got enough ass to move all this steel anyway” I don’t know if that makes any sense, but that’s the best way I can describe it.
I attempted several times to get it to budge using just my four finger tips and as much pressure as they could exert, but it wasn’t happening.
Overall, I don’t see it as an issue. If I wouldn’t have put the palm of my hand on the back of the blade and pressed like a maniac, I never even would have known it existed. It’ll definitely never be felt when carrying, cutting, or fondling. My concerns were put to rest I believe.