I don’t know. Maybe it’s just my thumb getting used to it. Thinking about it, can a lock bar really get better over time opening and closing a knife? You can’t say that you didn’t give the knife a chance. You tried it out and it it wasn’t for you.
FWIW, I haven’t used my gen 4 Hinderers for quite a while. I’m guessing for at least a few months. I wanted to do a comparison so I just opened and closed the Full Track five or six times. I then did the same thing with my gen 6 xm-18s and they were clearly much easier. After those, I did it with my gen 4s and they are in a different league. Man, that lock bar is so easy to use. It almost felt spongy to me it was so smooth and easy.