Bryson DeChambeau's entire outlook on golf has been shaped by one of the most controversial books in the game: The Golfing Machine.

But atop the heaving shoulders of Bryson DeChambeau, golf’s new standard-bearer - or pall-bearer, if you prefer - The Golfing Machine has been thrust back into the mainstream.

Mr. Doyle, 74, is a cult figure among golf teachers, the leading advocate of a fiendishly complex system called the Golfing Machine.