SB, I thought of mixing the two. Wassermann's water bottle drill and the football. Did you make the girls load the football like you do the water bottle drill?I've started using a Junior size football with all the players that are coming to offseason workouts. I show them Wassermann's waterbottle drill and from there we start off warming up with underhand throws with the football. They couldn't throw a spiral riseball type throw at first but within about half hour they get the hang of it a little.
One of our pitchers had no pop whatsoever when hitting the catcher's mitt. After a few days so far of throwing the riseball type pitch and then throwing a softball she now has the ball popping the mitt. I can see the new interest in her pitching now.
I'm also having them throw the football the normal way. I can see the bad habits slowly being erased. I'm pretty excited about using the football. Especially come November, which is a softball dead period. We can throw footballs to our hearts' content. And also have the excuse for doing so if the players start whining to throw softballs; which I don't believe they will because they seem to have a lot of fun throwing the footballs.
And who knows; we might find a future pitcher!
Have you seen this video "The Throwing Doctor"? Txnick told me about it.
https://youtu.be/zwi-WFb9kV8