Originally Posted by
TomC
You don't need more stretching. Your unwillingness to get depth is not a matter of flexibility. It is a matter of body awareness and making yourself do the movement. Reps four and five were deep enough. Only the first one stood out as being shallow. Did you become more flexible during your set? Unlikely. I bet you still cannot touch your toes.
You still need to control your descent and your ascent better. Get tighter. Drive your ass up and not back while keeping the bar over the middle of the foot. Get some lifting shoes. They will be of great help to you with balance and depth. Take your next jump in weight and contract the musculature of your legs prior to and during each rep.