I am the Head Baseball Coach at Barbe High School in Lake Charles, LA for the past 23 years. My coaching staff was introduced to the Insider Bat by a coach from a visiting team during a rain delay at our tournament. We were talking about drills to teach kids to stay inside the ball and he said hey I have the perfect thing for you. Everyday during drill work, we use the Insider Bat and it has helped raise our kids understanding of how important it is to stay inside the ball. What I like so much about the Insider Bat is that you get immediate feedback. If you roll over, you miss the ball or pound it in the ground. If you dip you either miss the ball or pop it up. You must get in and stay in the correct hitting position in order to get the correct results. I would recommend the Insider Bat to everyone!