Posted by: Mark (mjury@amgen.com) on Fri Nov 20 10:14:14 2009

> Hi Mark & Chuck
>
> THT is the term I use for the mechanics that accelerates the bat-head rearward from the 'launch position' to the 'lag position.' I have shown many video clips of the best hitters applying THT and plotted the bat's rearward trajectory. Before we discuss how the mechanic is best applied, I think you would have a better understanding of the mechanic's importance if I showed swings where little THT is exhibited.
>
> I will work on some comparison clips this weekend and hopefully Brian can have them ready (internet address) early next week. In these clips I will point out mechanics that generated good rearward acceleration and those that do not. -- Although I agree with you that BHT can generate good bat speed by itself, all the college hitters I studied who produced 700+ slugging percentages, exhibited strong THT mechanics.
>
> Jack Mankin

Thanks Jack.

Yes, I have seen many of your video clips on this site. I think I may have read all of the postings involving THT as a discussion topic. The video clips have been helpful in understanding THT. I'm just not sure how to best drill it or isolate it so that I can reinforce the proper mechanics for THT portion of the swing process.

Thanks in advance for any suggestions.

Respectfully,

Mark