My DD also eliminated her backswing and it has also improved her accurracy and speed (leg drive). With the backswing she got into the habit of leaning forward, which threw everything off (arm circle, step, etc.). It was a chain reaction event. She also had decreased leg drive with it. She...
Not a PC, but DD's PC changed her motion last fall and we have seen some big improvements. She had a back swing that he took out because she was leaning forward to much with it plus a whole host of other problems that stemmed from it.
We have had to work very hard with the new motion, but she...
I have also had a similar situation with my daughter pitching faster than her teammates. She has been pulled because it wasn't "fair" to the other team. She has been on teams that the coach didn't like strike-outs and so she was pulled early because she averaged 2 K's an inning. Our main...