Jeff Martin is the founder of "Thinking About Golf". He is also the author of "Hogan as it Happened: Setting the Record Straight". Jeff joins our podcast to discuss and share his research and work. He shows how golf swing technique has evolved of the years and he illustrates a number of lessons you can learn from the greats of yesteryear like Ben Hogan and Sam Snead. He also compares and contrasts the "modern day" golf swing (Matthew Wolff and Viktor Hofland) to the swings of the past (Miller Barber and Jimmy Bruen). Jeff addresses Body Pivot, Swing Length and Shaft Plane. He also talks about the effect of improvements in golf equipment technology and the corresponding increase in power off the tee.