P-funk said:don't do the olympic lifts unles you have someone there to teach them to you. The biggest problem with strength and conditioning programs is they have kids do these lifts without proper instruction and then they wonder why they don't benefit from them or why they get hurt.
as far as jumping technique try to land between the ball of your toes and the begning of the arch of your foot. bend your knees to soften the landing as landing knee dominant will destroy you. make sure that know knees are tracking over your toes as letting them dip in will most likely cause an injury (possible acl tear) and it will defenitly screw up your force absorbtion, force application and reactive abilities.
Can you post videos from three sides? Side, front and back?
video of me jump squatting? uhh, doubt it.....
i think my knee position is fine on the downward movement, but i sometimes notice them leaning in on the upward movement...