To my understand the shoulders are suppose to be directly above the wrists as you bring your legs into the pressing position. The shoulders should stay in a maximally open, protracted and elevated throughout the entire press, the compression of the spine being what allows the shoulders to maintain this position.
Why is it then that in almost every example I see the shoulders lean forward in front of the wrists slightly breaking the perfect stack alignment and then moving back into the stack once the press is complete? Is this an error on the part of the performer or is it an acceptable deviation as long as it is controlled and within an acceptable range?
