Back in a 2006 issue of GOLF Magazine, Peter Kostis broke down a key "X-factor" that pros use to add serious speed to their swings.

Almost an hour outside of the thriving metropolis of Dallas, Texas is a place called Denton, a small town with a snug array of shops and restaurants, which are lorded over by the brown, boxy dormitory ...

It's an interesting, not-so-coincidence that almost all of golf's recent slate of major winners have an extremely stable relationship with their swing coach. Brooks Koepka and Dustin Johnson have been ...