OK dukie I'll give my 2 cents keeping in mind there are others on this thread who have posted a lot more and seem extremely knowledgeable.
I think the start and end of the swing could use work but again there is a lot to like. Come business time she uses her body well and looks very good at the point of impact (very good for her age).
She starts with her hands way up by her head. She quickly brings them down but this may be contributing to her overall start high and end high with a big sort of around the world loop. I would try starting the hands at the top of the strike zone like Ted Williams recommended.
Her coil or load looks fairly good. On the T shot she wrapped her bat around her head a little but off the machine this wasn't bad, so like I said I'll attribute that to the exaggerated movements I see all the time when kids this age hit off the T. The biggest problem is that she leans back. Take a look at this video for a good drill to correct this and an explanation of the proper weight after stride. She has too much weight on her back leg. Coil the hip a little more and lean back a little less. I couldn't see what happened as well off the machine in this regard because of the camera angle (from the side is better ) Most of the best hitting gurus I follow teach a 40-60% balance or 50-50, one even 60% on the front.
I only glanced at all the replies but it looked like you got volumes about the back foot. I didn't parse through it all. In my opinion again too much weight is back. This is why the back foot and hence her body over-rotates. The follow through is great but if the weight is properly transferred to the front side her back foot will come off the ground momentarily. Take a look at the picture of Pujols at the top of this page of O'Leary. Not that a 9 yr old needs to get to this point but play around with the weight yourself and this picture gives you the idea of how proper weight shift will get rid of her "spinning" on the back foot.
Off the machine her front shoulder lifts and she finishes pretty high almost like a golf finish.
Off the T I like the finish a little better. Off the T from the point she starts rotating to impact through most of her follow through she looks awesome. She has great hip then torso then hands action. The bat comes through the zone nicely and for a good area. Her back elbow stays close to her hip and her front arm is close to her chest. Look at the T shots from the point she starts to rotate, you can see how still her head is against the garage squares, she is rotating perfectly around the axis through her body.
The moral of the story for me is the stuff I mentioned in the last paragraph is absolutely outstanding. You barely ever see those positives in a 9 yr old. There is plenty to work on but in my opinion it is the easier stuff and she has for her age achieved the harder to do stuff to a great degree.
If she really loves working this keep going but for how far she has come I would consider working on either a celebration ice cream cone with Dad for all her great work or maybe focusing on other parts of her game for a bit while the good aspects of this swing just sink in.
I think the start and end of the swing could use work but again there is a lot to like. Come business time she uses her body well and looks very good at the point of impact (very good for her age).
She starts with her hands way up by her head. She quickly brings them down but this may be contributing to her overall start high and end high with a big sort of around the world loop. I would try starting the hands at the top of the strike zone like Ted Williams recommended.
Her coil or load looks fairly good. On the T shot she wrapped her bat around her head a little but off the machine this wasn't bad, so like I said I'll attribute that to the exaggerated movements I see all the time when kids this age hit off the T. The biggest problem is that she leans back. Take a look at this video for a good drill to correct this and an explanation of the proper weight after stride. She has too much weight on her back leg. Coil the hip a little more and lean back a little less. I couldn't see what happened as well off the machine in this regard because of the camera angle (from the side is better ) Most of the best hitting gurus I follow teach a 40-60% balance or 50-50, one even 60% on the front.
I only glanced at all the replies but it looked like you got volumes about the back foot. I didn't parse through it all. In my opinion again too much weight is back. This is why the back foot and hence her body over-rotates. The follow through is great but if the weight is properly transferred to the front side her back foot will come off the ground momentarily. Take a look at the picture of Pujols at the top of this page of O'Leary. Not that a 9 yr old needs to get to this point but play around with the weight yourself and this picture gives you the idea of how proper weight shift will get rid of her "spinning" on the back foot.
Off the machine her front shoulder lifts and she finishes pretty high almost like a golf finish.
Off the T I like the finish a little better. Off the T from the point she starts rotating to impact through most of her follow through she looks awesome. She has great hip then torso then hands action. The bat comes through the zone nicely and for a good area. Her back elbow stays close to her hip and her front arm is close to her chest. Look at the T shots from the point she starts to rotate, you can see how still her head is against the garage squares, she is rotating perfectly around the axis through her body.
The moral of the story for me is the stuff I mentioned in the last paragraph is absolutely outstanding. You barely ever see those positives in a 9 yr old. There is plenty to work on but in my opinion it is the easier stuff and she has for her age achieved the harder to do stuff to a great degree.
If she really loves working this keep going but for how far she has come I would consider working on either a celebration ice cream cone with Dad for all her great work or maybe focusing on other parts of her game for a bit while the good aspects of this swing just sink in.