I hope it is optional while on the field. they are running and need to breathe
personal preference. All of them will work
I say what the Umpire says goes. He is trying to make the right calls and (or she) and they will see things from their perspective and not yours....
I think if a player really loves the game she will be eager to practice
I hope there is good response. Umpires are an important part of Softball!