We have been working on Java's drive drill. I know it has got some work to go, but it added at least 1 mph ( maybe more ) but it added tighter spin On the ball. I will gun her tomorrow. We went to the Chattanooga clinic. Rick and Mike(java)are amazing if you have a chance to work with them. We have learned so much. https://youtu.be/df-q3NxzGLw