Hi,
After reading all of the replies, it seems like you have some good advice. I just want to throw my 2 putts in.
If your pro has been around longer than 3 years, he probably knows more than just stack and tilt. It has only been on the national scene since the Golf Digest article.
My son and I have been taking lessons at Turning Stone Casino in the golf dome and on their courses with the pro down there, Marty Nowicki. He has been named Central New York PGA Teacher of the year 2x.
He teaches a combination of Stack and Tilt, The Golfing Mchine, The One/Two Plane Swing. Basically he takes what you do and tweaks it.
Any good golf instructor should be versatile and not hang his hat on one method regardless of past success.
As for the stack and tilt, it does promote more of keeping the wrists hinged and ahead of the ball on the iron shots, resulting in more compression of the ball. The extra distance and draw on the ball is nice.
With the driver and longer woods/hybrids, he mixed it up a bit. He kept the head over the ball with some of the weight going more to the left than we have been taught, but not as dramatic as in the S&D; iron swings. Also, he wanted more of a one plane swing with the longer clubs, coming in flatter, rather than steeper.
To sum it up; find a techer who can work with you, and not make you work with him and his chosen method of teaching. I would explain your concerns to the pro, and go from there.