Posted by: Jimmy () on Thu Feb 21 12:40:36 2008

> >>> Jack,
>
> I mainly disagree with statements that you've made claiming that body rotation throws the hands into their path.
>
> "Great hitters keep their hands back and allow body rotation to accelerate them into a CHP."
>
> I believe that hand path is caused by a system of combined forces that does include the body, but it also includes the arms, hands, legs, and feet.
>
> I feel that your statement about body rotation accelerating the hands is misleading. It sounds as if the hitter just needs to rotate his body and his hands will be thrown into a MLB path. Certainly not the case. Those types of statements are why I do not believe MLB hitters use rotational mechanics as defined by you. <<<
>
> Hi Jimmy
>
> Your posts have often demonstrated a closed mind to the value of rotational principles in a high level swing. Therefore I certainly do not expect the video clip below to have any impact on your thinking. However, for the more open-minded readers, the clip reveals that in a high level swing, it is the rotation of the shoulders rather than the extension of the arms that is mainly responsible for accelerating the hands around to contact.
>
> <a href="http://www.batspeed.com/media/Rose_Keys_to_CHP.wmv">Pete Rose and the CHP</a –
>
>
> Jack Mankin

Jack,

Your most recent statement...""the rotation of the shoulders rather than the extension of the arms that is mainly responsible for accelerating the hands around to contact.""

Nice of you to add the word "mainly" to your quote. It seems that you agree with me that without the word "mainly" the statement can be misleading.

And I do value the role of rotation in the swing. I just wouldn't say that the rotating shoulders is the only source of power in the swing. I would also state that the two shoulders are independent in their active role in the swing.

So the term shoulder rotation leads many to believe the shoulders are one unit when rotating. False.

Thanks for your response.

Jimmy