Most people do not understand the concept and spirit of 'The Golfing Machine.' First, it's not a 'method.' It's basically stating that there are almost countless ways to effectively hit a golf ball and then it catologues all of the ways. Homer Kelley looked at the golf swing as a 'machine' (hence the name) and stated that there are 24 parts to this particular machine and each of those parts can have 12-15 variations.
Furthermore, there are only 3 imperatives that the 'machine' must have:
- Flat Left Wrist
- Clubhead Lag Pressure Point
- Straight Plane Lines
In essence, The Golfing Machine goes over every different method to hit a golf ball effectively and can explain each method which includes the Stack and Tilt and the SliceFixer method. And the spirit of The Golfing Machine is not to say that one method is the best or the worst, but that there is a best method for each individual, thus it's a customizable method. To add, The Golfing Machine does not care for wholesale swing changes, but more or less finding the parts of the 'machine' that are producing unsatisfactory results and make tweaks and adjustments to those particular parts so the golfer can start developing satisfactory results.
What it comes down to is that a person who understands 'The Golfing Machine' can take a look at a swing and break it down. Fred Couples has a very different golf swing from Sergio Garcia. But from it, I could categorize their grips, hinge actions release actions, plane shifts, delivery paths, etc.
The Stack & Tilt is one method of hitting the golf ball effectively. Unlike 'The Golfing Machine' which goes over almost every method under the sun of hitting the ball effectively, the Stack and Tilt is just one particular method of hitting the ball effectively.
The inventor of the Stack & Tilt is still a bit unknown. Some say that Mac O'Grady invented the Stack & Tilt and is indeed one of the patterns he developed mostly for short iron shots with a low trajectory window. Others say that Mike Bennett & Andy Plummer came up with the idea after working with O'Grady and taking some of the knowledge that he gave them.
Either way, O'Grady, Bennett and Plummer are all well versed in 'The Golfing Machine.' One of the aspects of The Golfing Machine is 'low point' which is the lowest point the clubhead will travel in the golf swing. The Stack & Tilt method promotes a way of 'ensuring' the golfer's low point will be correct so the can properly compress the ball.
So again, the Stack and Tilt is one method to hitting the ball effectively that was developed by people who used their knowledge of 'The Golfing Machine' to create the Stack and Tilt pattern.
The SliceFixer (aka Geoff Jones) method is based mainly around the '9-3 drill.' This drill consists of swinging the club back until the left arm is at '9 o'clock' and then swinging down until the right arm is at '3 o'clock' in the follow through. One of the main keys is that after impact the hands are supposed to go 'low and left', creating a 'centripetal release.' This type of pattern is very much based off they style of swing Ben Hogan utilized.
Like the Stack & Tilt the SliceFixer method is just one method of hitting the ball effectively. It's actually very much like the 4-barrel hitter pattern described in 'The Golfing Machine.' The 4-barrel method means the golfer uses all 4 of the power accumulators as described in 'The Golfing Machine.' Homer Kelley described this as the most dynamic golf swing available. However, Mr. Kelley made sure to note that a golfer with a well executed and consistent '3 barrel' swing (only using 3 of the 4 power accumulators) would be more effective than an improperly and inconsistently executed 4-barrel swing.
And as Homer Kelley describes, there is no 'best' or 'worst' golf swing, but there is a 'best' type of swing for each golfer. Just as the Stack & Tilt method may not work best for some people, the SliceFixer method may not work for many people (personally I believe most golfers need to get on the elbow plane on the downswing to use the method and/or have quite a bit of forward shaft lean at impact).
Where The Golfing Machine sometimes fails is that many Authorized Instructors tend to fall in love with or only feel comfortable teaching a particular type of swing pattern or two. Also the Stack and Tilt and the SliceFixer method really preach the pivot action in the swing and many Authorized Instructors tend to focus more on 'educating the hands' while the pivot takes a backseat.
But again, think of it this way:
The Golfing Machine = catalogues and understands almost countless patterns.
Stack and Tilt = one method of hitting the ball.
SliceFixer = one method of hitting the ball.
The Golfing Machine = explains the S&T and the SliceFixer method (along with the countless other patterns).