I know this is an old thread but I thought I would kick it back up.
I'm going to get me some grippers (Captain of Crush). Seems my supporting grip is good but crushing grip is not so good. I have no problem holding onto heavy DL's, Rows, Pull ups etc but I got owned with the grippers the other day.
I work in my gym now and the manager has the captain of crush #1 and #2. I can close #1 but no chance on the #2. He can get 3 reps with #2 and about 12 with #1 (you've probably guessed that the work ethic in the gym is second to none).
Anyone else have these grippers?
Video below is Magnus Samuelsson crushing a #4
BTW there's not really any reason i'm working on this other than to try and get better at it. I just want skul crushing hand strength. OK actually I just hate getting beat at anything...