For over 45 years Peter Croker has dedicated his life to understanding the game of golf, first as a Touring Professional and then as a PGA instructor and coach. He has spent time with some of the game's greats like Ben Hogan, Peter Thomson and Greg Norman. His students have included Heads of State, legends of golf and multiple PGA Teachers of the Year. Crocker joins 'On the Mark' to share his experiences, his approach to the golf swing and his opinions on what great ball-strikers do. He also shares tips and drills you can employ to improve your ball-striking.