I have a lot of trouble staying upright during squatting of any kind. I'm posting links to several back squat sets at increasing weights. I'm curious if at any point my form breaks down enough that the movement loses its utility. Basically, if I were squatting in your gym, would any of these sets cause you to say, "That's too much, back off and do it right." This is, of course, assuming that ANY of the sets are correct. If they aren't, please tell me that as well. Sorry for so many sets. I've altered the links so that the videos will play right from the beginning of the set, and I hope it doesn't take too much time to watch. I never know where to draw the line between "This is a good hard heavy set" and "It's just too much weight." Thanks in advance.