I had three sessions scheduled last month with three very different hitters:

One plays in the big leagues.

One starts for a top D1 program.

One just committed as a high schooler.

All elite. All successful at their level.

As I broke down their swings, something jumped out that I'd never noticed before.

In every single one of their best swings, their legs did the exact same thing.

The back knee fired toward contact. The front leg braced to catch the energy.

Their upper & lower half were in sync, so every ounce of power they had went directly into the ball. (not leaking elsewhere)

Then I looked at their bad swings, and the difference was night and day.

When their legs weren't in sync, everything else broke down.

I called Donnie Ecker, the legendary World Series hitting coach, to tell him about this…and he brought up an important point:

“Every coach is so focused on exit velocity, bat speed, and whatever else is trending on social media…they aren’t even talking about this. We should do something about it.”

So we teamed up to create something that fixes this problem once and for all.

Here's what we built…