I was going to start a thread. Titled " drop, change, and rise."
Why are these three pitches you only go with. Please explain the science behind it .
Bill likes the ball to change planes. Every pitch in baseball changes planes by definition, b/c it is thrown off a hill on a downward trajectory. It starts out of the strike zone and moves into it. A fastball in softball starts at the pitcher's hip (in the strike zone) and doesn't move much from there. IIRC, I've heard Bill go so far as to say a softball pitcher shouldn't throw a fastball, and the primary pitch should be a drop.
Someone, hopefully Bill, will correct me if I got that wrong.