|: I was watching UR videos. :-D Hey, think I understand pumping more. Seems like the best way to think about it is lowering your butt to your heels then pressing with your legs as you go up? Thats right correct?
Pushing is very similar to gaining height on a swing. You compress and push when you are going down the transitition (well, that works best once you already have some height. So the initial height is achieved otherwise).