I was throwing with a radar ball type thing. It says its pretty accurate and its a 2.0 ball. I guess it should be close to the actual speed of the ball and these are the numbers it gave me.
Fastball (4seam): 75-77
Change-up(circle change): 62-64
I can also throw a change-up 56-58 constantly by taking a little off of the change-up.
My question is would it be more effective to thorw the change-up 62-64 or 56-58.