After reading the fastball vs. drop ball thread I have a related question. My daughter is 9 and has been pitching for almost a year. She is still developing consistent mechanics and the corresponding speed and accuracy. Sometimes she throws a bullet spin fastball, sometimes it is something between an 11/5 and a 12/6 spin. She isn't consciously doing something different and her grip is the same (4 seam fastball grip with thumb slightly off to the side as her hands are still not large enough to get her thumb in opposition to her middle finger). It is generally that when she is trying to throw harder she gets bullet spin, when she is thinking more about IR she gets closer to 12/6. The bullet spinning ball is coming off of the outside of her index finger. I think mostly she is just late with her IR and is releasing the ball before she rotates her forearm, but that may not be it. My question is, should I work with her to get the 12/6 spin now, or wait until later? When she gets the 12/6 spin there is a noticeable drop. It isn’t 8”, but it is noticeably more than when she throws the bullet spin. At this point I don’t see trying to simultaneously develop both pitches, so I need to pick one or the other. Advice?