Share 'Correcting a Batting Flaw'

I have been coaching fastpitch for about 40 years and I have met my match with a girl that lifts her back foot during her swing. She is an extremely strong girl with quick wrists that hits doubles and triples, when she makes good contact, but she is hitting with all her weight on the front foot. I have used up all my methods (having the front foot on a higher plane than the back foot during sof...