I have ironmind gripper up to number 3. I couldn't get much stronger at all, is that common? The 3 is still something I doubt I would ever achieve. But closing number 4 is very impressive to me. Seems you could hurt you own hands being that strong. I worked up to like 8 reps with the number 2. Really should have kept training because that shit is impressive to a small number of people like myself lol. They have the rolling thunder and thick bars and something else at the gym. I left my grippers at the gym and some bitch stole a couple. It should be a basic moral thing, you don't steal from a gym especially.