Posted by: Jack Mankin (MrBatspeed@aol.com) on Wed Aug 22 23:32:26 2001

>>> interesting observations. I have come to similar conclusions regarding tht and 'pre-launch torque'. Have you found that those using what you refer to as 'pre-launch' tht have better results, ie, is that a superior method or is this just an individual variation? <<<

Hi Major Dan

There is a definite advantage to overcoming inertia and having bat velocity as the swing is initiated – if, the direction of that velocity is directed into the swing’s plane. Less resistance due to inertia (as opposed to starting from a static position) means the amount of force required to attain a higher bat-head velocity (bat speed) will be proportionally lower. But cocking the bat-head forward past vertical takes the bat out of the swing plane. This requires a constant pulling adjustment of the top-hand to loop the bat-head down and into the swing plane before rotation and full initiation begins. --- Failure in timing or direction of bat-head velocity can result in waves in the plane and reduced bat speed.

Note (1): Very few batters who cock the bat to, or past vertical, in their ready position will actually apply useful pre-launch torque. Nearly all will bring the bat to a near, or full, stop in their launch position before they initiate the swing. Regardless of how much they wave or accelerate the bat-head in pre- launch, nothing is gained if the bat-head becomes static in the launch position.

Note (2): Many weaker hitters will start extending the hands while the bat-head is cocked vertical or forward. The bat-head remains near motionless as the hands zip underneath. – I call this “the pendulum” swing.

Jack Mankin