My daughters team is playing a ASA tourney this weekend. She currently plays USSSA ball which allows a step back of the non pivot foot and was how she was pitching. I have since broke her of that but I have another concern before she takes the circle this weekend. She does exactly what the girl in this video does. She rocks back on the heel of her pivot foot (lifts her toes). Is this legal? I don't think it is but need to ask so I can try to work it out of her before Saturday.