CaCO3,
Most of the kids my son played with were very good ball players and had good skills training, but nonetheless many kids tried to muscle the ball at first and their mechanics broke down. I had to remind my kid to trust his swing mechanics and use his lower half, and if he hits the sweet spot with a BBCOR the ball will go. Forget about BA and look for solid line drive contact.
Also, my son is a catcher and he had to resist the urge to heave the ball to second with too much effort. A quick release with a good low one-hopper to second works just fine until the arm strength catches up.