Push back rather than pull up?
Until recently when I would reach my arm forward past my head I would extend my arm so it went quite deep but then pulling it back, at some point the hand would need to come UP to the surface of the water. This should result in propulsion down rather than forward...right?
So instead I tried, still extending my arm as far as possible out past my head, but not nearly as deep and so when pulling back the palm is for more of the time perpendicular to the bottom of the pool and so when pushing water out of the way propulsion should be more directed forward...which is what one wants.
Does this make sense? IS this a good change?