i went to doug gillis clinic over the weekend and he gave a lot of great info. as stated he said look at the power line as 12 oclock. he said a lot of girls only get to about 11 oclock. he also said that if they open across the power line they will be better than before. he said most girls only make it to about 1:30. he also stated the girl will find her sweet spot.
Did you attend the Indy clinic? I was there as well.
Regarding the video and build on what Gillis taught at the clinic. In the launch position the pitcher's body should be leaning much like a runner in mid stride. The back heel should stay down with only enough gap at the heel to fit a credit card. The pitcher rolls the hips forward (not bend at waist) as far as possible without falling. This will lead to a strong launch position.
Prior to launch should have a couple other positions. Toe tap in which all of the weight is on the ball hand with glove side toe tapping the ground. From there, roll back (hips/spine together) so that the ball side toe lifts. Both of these are slower loading moves and from the back position she will begin to launch...
Hope that helps a bit.