For years some golfers couldn't even break an egg because of the different tips and hints they have read, tried and incorporated to their game( most of the time the different tips and guides from the different materials that they have were contrasting in principle and execution. This resulted to inconsistent performance of players that eventually led to the decline of the sport) which caused frustration in many players. Because of the obsession of some of the golfers to perfect their golf swings most of them performed poorly in ranking games and tournaments. This caused a significant decline in the golfing public in the late 90's.
Then one machine and the vision of a man changed everything and turned the world of golf around. A company that makes golf clubs to test their shafts' strength invented a machine; it was specifically designed to recreate the swing of Byron Nelson. Nelson is said to have the best swing in the world of golf. The machine was aptly named Iron Byron, after Nelson, and it went on to test more than a thousand shafts.
Some people noticed the accuracy and the consistency of the Iron Byron and thought that if they could dissect the movement of the Iron Byron's perfect swing then they naturally have copied the perfect golf swing of Byron Nelson.