[roundmound]

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There is no correlation to juicing and huge performance increases in baseball, other than anecdotal. It does nothing to improve hand-eye coordination, and while additional upper body mass improves bat force, it actually reduces bat speed.

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Assuming the weight of the bat doesn't change, physics 101 tells us that a faster bat will always have a greater force. There is no possible way a hitter could create more force while slowing their bat speed. It is probably true that after a ceartain point gaining muscle mass would decrease bat speed, but this would then also decrease the force.