amount of fast twitch muscle he has, he can rev his body up to unbelievable levels which can be hard on his connective tissue and skeletal system.
Also, it is cool to see how huge he has gotten, but it worries me a bit that he will be carrying too much weight...exacerbating his risk of injury.
I wonder if the coaches talk about this w/ him: to try not to rev his engine to the max. Just because you are driving a farrari, doesn't mean you have to go o-60 in 2.6 sec every time