Is there a dynamic / physics advantage in doing this:
Which outweighs any variation in alignments which may be out of synch by not swinging from a fix head position?
I don't think there is an advantage for golfers who keep score. Espescially those that have work schedules.
I think there is a form of loading the legs and pushing off the ground that would allow for a stable center, much like, and including, staying centered with hula hula.