What kind of speed differences are you guys seeing in your pitchers fastest pitch and their change up. Respond for all ages please. Watching fsu waldrop throw her drop low 60s and flip change low 40s. My DD throws her fb 47-48 and her flip change about 30mph. If she hangs it belt high it has been hit hard a few times but its hard to get called strikes when she throws it low. At 30 mph it will cross the plate at the knees but be in the dirt when it gets to the catcher. Any suggestions or advice? Should we ditch the flip or just ride it out til she gets more speed.