Could someone explain to me what this statement means"In single wrist action. the left wrist gradually turns(via the natural body and arm rotation),but it is not turned by the player.
The Hand does not turn itself but will turn as the body rotates. And because the Hand has NO MOTION, Impact Alignments remain intact. The Left wrist does cock because of the folding right arm as the stroke comes to the Top (shoulder level). For a Hitter, this is a match made in heaven.