My dd is 10. We had a workout tonight. We pitched, hit, and fielded . One of the things we close with is pitching from a baseball mound. She loves it. We throw about 10 or 15 pitches and we bump fist and we are done. Well today a softball pitching coach that was there, was being nice and told me since my dd pitches softball that she shouldn't throw over handed because it could cause injury. I said "thank you". I have never heard of this. Just seeing if anybody else has heard of this? Thanks