My daughter just came from a camp where they filmed them with RVP and did a four frame by frame comparison with an olympic player - nuveman in my daughter's case. My question is can you compare bat speed with this comparison? I would assume that they would have to be shot with the same shutter speed and consequently you would be able to. Of course pitch speed and location would change when the swing starts. Does this video start when the ball enters the picture or when the swing starts? As you can tell I don't know much about the software.