Posted by: Jack Mankin (MrBatspeed@aol.com) on Tue Sep 12 00:38:43 2000

>>>I am really enjoying your insight & your website. I just have one quick question:
What part does bat weight play in your rotational mechanics model? - given the hightech, lightweight bats available today, allowing greater batspeed without sacrificing bat wall strength, etc...., do you have bat a weight preference (ie. lighter,heavier) that you feel will help to achieve maximum batspeed through rotational mechanics. Or, is it simply an issue of individual strength, comfort, preference, etc. <<<

Hi David

With the rotational swing, forces that accelerate the bat-head are constantly being applied from initiation to contact. The efficiency of this model allows a batter to swing a heavier bat while maintaining good bat speed. --- The weight-shift model accelerates the bat more lengthwise (knob first) during much of the swing and relies on an explosive action near the end to bring the bat around. This is a less efficient swing and requires a lighter bat to obtain the same bat speed. -- For a given bat speed, the heavier the bat the harder a ball is hit.

I would suggest working with an average weight wood bat and develope good mechanics for increasing bat speed - not a lighter and lighter bat to coverup poor mechanics.

Jack Mankin