I was looking for something that I learned at UofA, where the college coaches don't want a crow hop. I think they were wanting a "drive through."
I didn't find that but I found a ton of info on the crow hop. FastSports!
I, personally, don't like the crow hop throw.
Drive step, is the one taught by Candrea. Here is a drill, but there is a fee. Drive Step Instructions, Free Softball Pitching Techniques, Softball Training Aids