My daughter decided she wanted to ride Saddleseat (yay). Her upper body and hands are great but she is having trouble with keeping her leg back in a saddleseat saddle and her heels down and away. Her knees were always tight against the saddle in huntseat but changing from SS to HS, she is frustrated in why it's so much harder to keep her knees in and her leg back. I always rode SS so I have no experience switching. Has anyone switched and found the transition in leg position difficult. Why? And are there some exercises she can do at home to strengthen her legs?