ok i just got the box squat video to work, and here are some things i noticed.
1) Your head is dipping once you touch the box, if you keep your head straight and drive it back through the bar, it will give you better form.
2) Your descending pretty quick...but your explosiveness is just as quick, very impressive.
3) it looks like a real pain to get the bar "re-racked", why not do them in the power rack?
Last thing i noticed is...
4) your a lot stronger and quicker than me.. i feel so slow and weak after watching them