Haeger throws something similar.
What a nice pitch. Like URL rise screw changeup.
DD has this pitch.
Haeger throws something similar.
I'm not sure what you are getting at.
This is an inside fastball. It has some top spin, but it is certainly not a drop ball.
I count 6 rotations of the ball from the time it left her hand to the plate. Assuming she is throwing around 60 MPH, the ball takes rough .5 seconds to go 40 feet. So, that makes it around 12RPS.
Good drop balls are 25 RPS and up.