Gripping CoC s

I received the CoC #1 and #2 grippers last night in the mail. I was able to close the #1 immediately with my right hand, but not with the left. The #2 was about a 1/2" from closing with the right hand. Gotta be careful, my hand/wrist is already sore today just for doing a couple singles with these grippers. I will ease into training these, because I wouldn't max out on any other kind of strength training exercise 20 times in a one day. Its harder to remember this with hands for some reason.