I just bought the Zepp swing analyzer for my DD and DS. I'm really impressed with it so far. The kids will go through 30-100 cuts a day trying to get all the numbers in the green. My DD is 11 and has always struggled hitting the ball hard. My DS is 8, playing coach pitch and has a naturally...
I think she could just get the elbow in front of her hip a bit and keep from dropping her hands, she would be in much better position. Correct me if I'm wrong.
I will say that Lyndsea does a fantastic job with the kids. My DD took lessons from her last year and loved every minute of it. If we had time this year we would be doing it again!