I get the point where it could show you where you are casting. But, I am not sure about how it shows you the point of contact. Maybe when you hear the click it tells you that the contact point was a second or so just before that?
In any event, seems like the Rays are having fun with this one:
#rays have some good laughs when commercial comes on clubhouse TV showing hitting coach Derek Shelton touting the Speed Hitter training tool
— Marc Topkin (@TBTimes_Rays) April 17, 2013