I could do multiple pull ups when youngish but we called them chin ups ? I know. Must be a Canadian thing. Since my first rotator cuff injury I haven't tried one. Why would you ? Anyways, there are other exercises that would prolly work the same muscle group. I could care less about this kids ability to do the ahem, chin up. Its the desire to improve on something he's not so good at that worries me. Despite his stats there will be things that need improvement in the N.H.L. Does he absolutely burn up inside to be the best ? Thats what concerns me.