Knurling differences in Captain of Crush grippers?
So I just received a #2 in the main that was able to close and I noticed that the knurling ever so slightly feels a bit rougher — which I like — compared to the other grippers that I've got. I got like 7 grippers straight from IronMind and the knurling on them doesn't feel as rigid compared to this one I ordered from Amazon. I'm not suggesting that the #2 isn't from Ironmind but has there been a noticeable change in knurling over the years or something? Different patterns they've experimented with over the years? Can I get an idea of how old my grippers are based on the roughness of the knurling?