First start off with a bug. Make sure it is alive. Next put a ball on a tee and swing while squashing the bug. This is fun for Hours and hours. Make sure to tell the hitter to pull his front shoulder as hard as he can. and also make sure he lets go with his top hand early and finishes high. Make sure to yell out "thats it johnny" after every swing. You can learn more buy checking out "Johnny High Schools' land hard and hit hard" volume 3 edition from your local library. Johnny