when i say half squats i mean 45 degree squats. as a progression from deep squats i’ve just been doing in my max strength phase. joe – another benefit of doing 45 degree squats over full squats is that it allows you to fully load the upper/final part of the squat. when you go ATG you are limited in terms of how much weight you can use as the deep part of the squat is weaker and so you never lift sufficient weight to work the upper/final third of the squat which is the part most specific to jumping