Just in time for the approach of spring training, the Lightning Stick training tool is anticipated to be a home run with little sluggers, sluggettes and their coaches. Brooklyn-rased, LA-based inventor Joe Magno uses seven videos to explain how the lightweight, polycarbonate material and overall design aims to help players with the development of fast twitch muscle fiber within their body. That feature, combined with a knocking knuckle grip and flat surface, all work together to promote palm up/palm down swings and teach the batter to get all the way through the ball quickly and keep their hands inside. For a pledge of $40, backers get one Lightning Stick, which is estimated to run about $59 once it goes mainstream. Expected delivery is April 2014.