Scap Loading is widely sold as the way pitchers load and create velocity, but high speed video shows it's not what Justin Verlander does.

Actually.

Scap Loading

I first started to get the sense that the emperor had no clothes when I looked at this 2012 clip of Justin Verlander.

Justin Verlander

What I noticed was what Justin Verlander's Scaps were doing.

Which was nothing.

It then advanced with my efforts to maximize my younger son's velocity, but with the knowledge that Justin Verlander did NOT Scap Load.

Instead, and like Nolan Ryan...

Comparison of Nolan Ryan & Mark Prior

...Justin Verlander employed a movement pattern that I have come to call Body Loading.