I have been working with my daughter a fair amount on her swing, and I think she has progressed pretty well. Still lots of work to do, but she is pretty far ahead of most of the girls in her age group. I understand the need for tilt (I think she does too), so I am not trying to open a debate about the need for, or how much tilt a girl should have.
In her stance and at the beginning of her swing she has a good tilt (obviously, the amount is dictated by where the pitch is). However, it seems that during her swing she loses the tilt & stands more upright, which results in a more level swing and too many ground balls that could have been line drives had she maintained the tilt throughout the swing.
We do the matrix drill to reinforce the feeling of maintaining the posture throughout the entire swing, but during live batting, she often reverts back. Does anyone have any drills or tips o teach maintaining the tilt throughout the whole swing?