Captains of crush grip strength trainer

[Jimoakey]

Does anybody else use captain of crush hand grippers in conjunction with powerball?
After a month of hard training I'm up to 4 reps on the 1.5s

[Koman]

No, what is it?

[tburke]

Yeah! COC is the best gripper out there. I did 3 reps with coc #2 last year but I did broke my hands with too much of pb and coc. Now I'm up to 4 reps with #2 and till working on it...