Chaz Henry of www.PowerChalk.com talks to former NFL kicker and master coach Bill Renner. In this video, Bill presents 8 freeze frame moments (known as keyframes) that he uses to mark videos in order to better compare them side by size. The frames and their visual indicators are: * TwoHand: just before hand break (switch to one hand on the ball) * FrontTouch: lead foot touches the ground on step. * WeightShift: trail foot toe leaves the ground. Weight shifts to front. * BackSide: ball reaches the back of the head. * FrontSide: ball passes the front of the head. * Release: ball releases from throwing hand. * ArmParallel: throwing arm level to the ground. * Finish: arm touches chest (or comes across).

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