She has not figured it out. But she has reached a point from which she can figure it out quickly.

Lot of good in that swing....but no corner. She swings 'out front'....because she never gets 'behind' her rear leg.

Compare....



Your daughters batspeed is from 9 to 3 on a clock face.

Adrian Gonzalez' is from 12 to 6.

Your daughters 'lunge' forward is a problem. Not the action that creates the lunge....but instead the action that should be there, that isn't, to CONTROL the action that causes that forward lunge. And that would be the use of her back to resist that lunge.