Originally Posted by TSJ55
What?! The sweet spot is the sweet spot regardless of where you hold a baseball bat.
I just saw this comment and boy are you ever wrong about that. You shouldn't mock people who are correct when you obviously don't have any idea what you are talking about.
The sweet spot of the bat is the center of percussion, which changes based on where you hold the bat. It is not an innate quality of the bat itself but rather where the pivot point of the bat is, which in turn depends on where you grip the bat.
If you hit the ball on the Center of Percussion (COP) more of the force will be transferred to the ball and less force is wasted in vibrating or rotating the bat.
If you choke up on the bat it moves the COP out toward the end of the bat, making it more difficult to hit the ball hard and giving you less margin for error.
From the linked page: "When you hold a bat with your hands at the bottom of the handle (a normal grip), the COP is located about six to eight inches from the fat end of the bat. If you choke up on the bat, the COP moves closer to the fat end. That's because the location of your top hand is the place you want the bat to pivot. Changing your hand's position on the bat changes where that pivot point is, which therefore changes the position of the COP to one that corresponds to the new pivot point."
You can google Center of Percussion for more information or check out these links:
Once again the fallacy of choking up is debunked, but the unwashed mashes will always believe what their Little League coach told them in the 1970's.