Leo had to swing at a tee but stop the bat dead the moment it hit the ball. This forced him to use his core and legs for stability rather than just swinging wildly [1].

"You’re trying to punch the ball, Leo," Miller said, leaning against the L-screen. "Power isn't in your biceps. It’s in the earth. You have to take it from the ground." The Foundation: Power Hitting & Rotational Mechanics

To turn the theory into muscle memory, they dove into a three-part circuit:

Young Leo stood at the plate, his grip tight enough to crush the wood of his bat. He wanted to hit the ball a mile, but his swings were all arms—stiff and slow.

By the end of the session, Leo’s swing looked different. It was quieter but more explosive. He wasn't reaching for the ball anymore; he was letting his rotation do the work.

"If your hips don't clear, your bat is just a stick," Miller barked. "But if you rotate violently around your axis, that stick becomes a lightning bolt." The Drills: Building the Engine

Leo took one last look at the dented fence at the back of the cage. He didn't just feel faster—he felt dangerous.