Well, growing up playing yard football and then many years with pads on, I can say we didn't hit any less hard in the yard or pickup games, even up through highschool than we did in pads.
Probably why my body is so beat up. Yes we were that damn crazy. Yes football injuries scarred me for life. Yes I have a hard time moving sometimes because of those injuries. Yes I WOULD DO IT ALL AGAIN AND GIVE UP ALMOST EVERYTHING I HAVE TO PLAY AGAIN!