Oli Leett chats with putting guru from across the pond, David Orr, who has worked with tour golfers and Solheim cup winners.They chat about the biomechanics of putting, as well as the science of teaching the game to beginners and tour players.FOLLOW:https://www.facebook.com/LeettPuttingHubhttps://twitter.com/PuttingHubhttps://www.instagram.com/puttinghub/?hl=en