Store energy to release into the ball. The power of a baseball swing comes from the ground up, so weight is transferred to the back foot in anticipation of the pitch of the ball for release during the swing.
This is the transfer of the weight to the front foot, essentially projecting the stored energy and timing the action of the swing.
This is where the stored energy becomes uncoiled into the swing. The knob of the bat is driven towards the ball in a pulling motion.
This is the point of the swing that makes contact with the ball - and when the Exit Speed Developer fully expands to create extra drag through the last of your practice swing.
The transfer of energy continues through the contact of the ball.
Continuing the swing with power through the ball is very important to the distance and force it will be driven.