Chico Escuela posted:
Not trying to argue—I’m genuinely puzzzled and want to sort this: If a windup inherently equals faster pitches...
Because it doesn't.
For some guys going from the stretch causes them to lose velocity - but those aren't the same thing.
If those guys did everything from leg lift the same way in both deliveries, the result would be the same. Usually they shorten their leg lift and stride and rush their delivery. It's the introduction of inefficiencies that causes the lack of velocity - not the delivery itself.
It's only after the leg lift begins that momentum used in delivering the ball is created. In both the windup and a properly done stretch the leg lift will be the same - what is done before that point doesn't matter.
Look at these videos of Chapman to see what I mean - windup or stretch, everything from leg lift on is the same.