Thanks FP26, that's good advice indeed.. I just feel that her standing tall/coming out of her swing will always be a deterrent when it comes to power. If I could just fix that, something simple without changing too many other things or getting too technical, a practical fix, something she can practice to avoid this. Everybody has been very helpful and given me a lot of their time on this thread, and I appreciate the kindness and effort. But I feel at this point she needs me to shut up, and she's willing to put in the work.. but she needs something tangible. Does that make sense?
Makes perfect sense. Here is another option. I learned this drill from Tewks. I believe he refers to it as the "ladder drill". Set up the tee at a normal comfortable location for her. I like having it between the front foot and the front knee after stride. Have a tarp set up maybe 10 feet in front of her. Draw a line or target approximately 4 feet high and ask her to hit that target. Once she is able to do that, draw a line or target 6 feet high. Repeat. Then move to 8 feet high. Do not allow her to change the placement of the tee or change where she is standing. She has to adjust to the different heights with her body. If she does it properly, her posture should start to change a bit. She will keep her weight more back, and the angle of her front leg will look more similar to the picture below. IMO, this will prevent the issue you are talking about. I understand that you do not want to overload her with too much thinking, so don't even talk about mechanics as she is doing this. Watch her posture, and when she is somewhat similar to Mr. Votto (below), ask her how it feels. Provide support and positive reinforcement.
As was mentioned by others earlier in the thread, I think she uses her front leg too much. I hope that makes sense. Good luck!