Not that we all need verification on @Tom Saguto teaching but for you doubters out there... Here's some interesting stats via an article in recent GOLF magazine titled 'Off-Kilter'. statistics gathered on tour players hips and shoulders. Hopefully the table below makes sense. If you get GOLF magazine check out the article.
Great stuff, @Gerry_Lager!
As I've mentioned on occasion, Stack and Tilt is a model of the golf swing based on data from the best golf ball strikers. For this reason, someone can be embracing key Stack and Tilt elements without being aware of it. This is because there are basic requirements that must be met to hit a golf ball consistently on the center of the clubface. There are also components necessary to add power to the golf swing without sacrificing accuracy. Stack and Tilt determined, based on a study of the best golfers of all time, that they all had 3 things in common (the 3 main golf fundamentals): 1. Hit the ground in the same spot every time (consistent crispy contact) 2. Have enough power to play the golf course well (POWER) 3. Be able to have a predictable curve (accuracy). A player MUST be able to do those 3 things to be good at golf. Stack and Tilt is a system for accomplishing these fundamentals incredibly well! As far as Tour players using 100% of it, 99% of it, 97% of it, or 78% of it, it doesn't really matter because they're ALL doing it to some extent. Those 3 fundamentals never change, and you're not going to be consistently proficient at them by shifting off the ball!