Stanton has no choice to rotate his forearms to get the barrel around. Pujols is just being very direct. Is the difference in their front arms just a result of their intentions?
I think it is a mechanical difference. Pujols does a better job of maintaining angles. As a result his arms (both of them) behave differently. His front shoulder tells me a lot. If Stanton wasn't such a freak athlete I doubt he would have made it as far as he has.