In today's episode, Mark again is analyzing motion capture data from elite players—this episode features Brooks Koepka. Today, Mark quizzes Lou and Greg (who, as always, loves making random guesses) about Koepka's hip turn in his swing. In the discussion that follows, the guys talk about the massive effects that hip turn can have on your swing—including things that Greg himself is working on in his pursuit of continued good results on the Champions Tour. Where to find us: Mark Crossfield's weekly newsletter: https://www.crossfieldgolf.com/subscribe Mark Crossfield on Twitter: https://twitter.com/4golfonline Mark Crossfield on YouTube: https://www.youtube.com/user/4golfonline Lou Stagner's weekly newsletter: https://newsletter.loustagnergolf.com/subscribe Lou Stagner on Twitter: https://twitter.com/LouStagner Greg Chalmers on Twitter: https://twitter.com/GregChalmersPGA The Hack It Out Golf Podcast on Twitter: https://twitter.com/HackItOutGolf Learn more about your ad choices. Visit megaphone.fm/adchoices