Here's a thought. If an 80 mph pitch from 60.6 feet away takes about .48 seconds to reach the plate. With it taking .16 seconds for the brain to tell the hands to move and the swing itself averaging .18 second to complete. That last minute instruction or fear you just gave your player actually made him .01 seconds late to the pitch. Was it worth it?
Free the mind in the box.
Know the Why