Golf swing instruction or development must always adhere to the basic fundamentals of the golf swing. There are numerous swing styles,theories and even sometimes gimmicks that are out there for today’s golfer to find.
The golfer must have adequate physical capabilities to perform their swing style of choice. Knowing the right swing style for you should be the initial goal before working on your golf swing.
The two most prominent swing styles of late that have garnered much attention are the stack and tilt and/or single plane swing styles. Both of these styles have their benefits and their limitations. For the stack and tilt style the golfer must possess excellent lead hip internal and external rotational capabilities along with good balance and strength traits. The single plane swing style requires the golfer to possess excellent thoracic spine mobility and external shoulder rotation capabilities.
Basically what I am trying to get across is that there are numerous ways to swing a golf club. The million dollar answer is finding the best style for you and what you are physically capable of performing.
Swing instruction found in golf magazines typically refer to the latest magic move or quick fix tip. Typically they do not refer to the main root of problem, matching the style of golf swing with what the golfer is physically able to perform.
I would highly recommend finding a Titleist Performance Institute Certified Instructor who can assess your body's capabilities and limitations. Then sit down with this instructor or your current instructor and determine the right style of golf swing for you.
On another note, it might not be your body that is hindering your performance. Many times it might just be that you have not developed the proper movement skill. Rehearsing the movement skills under the watchful eye of your instructor can assist you with this development.
No matter what style of swing or swing instruction that you are trying to execute, incorporating proper golf fundamentals, reducing lateral and vertical motion should always be the starting point.