Boy there are lots of differing opinions on this when asking top level shooters. Two of the better shooters I know of though including my coach say that the front bow arm should be completely static. My coach basically said that the amount of time it would take to make that front bow arm movement repeatable is not worth any gains you may see. Lots of top level shooters that push though......so I guess it's really going to depend on what works for you. I know that when I am doing what I need to on the back end, I don't need to push with the front end. Just MHO.