Just to repeat the question I originally asked, what do folks who teach for a living think about this? When you've worked with students who tend to hit fat shots, have you ever found excessive head dip to be the root of the problem? At all?
Tiger is the best player for golf..i wonder what happens to him now? is he still playing? never heard of him anymore, or am I just behind
What about the converse of that? One has to be careful not to dismiss causation as mere correlation. Sometimes a person can be so focused on something small and subtle (maybe something that the person was just recently learning or studying) that the person overlooks what is glaringly obvious.
I am currently working on a swing change and I have therefore practiced a lot without a ball. [...]
Agreed.
However, there are probably more differences from Tiger 2000 to Tiger 2011 than all of us put together could list. And, I'm not just talking swing. In my opinion, at that level, the golf swing has much less to do with a player's ability to score and win tournaments than we give it credit for. He's changed his entire swing twice since then, has diminished short game skills, and who knows what's changed inside the man's head.
Now, this thread is about the swing itself, so if we are only trying to analyze its performance, why not compare some relevant performance stats (calling Richie3Jack?) of his 2011 (though abbreviated) season to those of his Butch and Haney heydays? I suspect that we'll still see a much poorer performance in terms of ball striking (assumption: swing quality = shot quality) this year, but at least the data would serve as a better measuring stick than tournaments won, world ranking, or any other measure that encompasses all aspects of the game.
My point has been that Tiger's head dip dramatically increased after March 2009, and that this resulted in a dramatic increase in his scores. Ever since then, on the days in which his head dip has been bad, his scores have been bad, and on the days in which his head dip has not been so bad, his scores have not been so bad.
Before March in 2009, even though his swing was no longer a Harmon swing, he could nevertheless score, because he had not yet lost control of his swing (with an exaggerated dip).
I used 2000 as a point of comparison because that was the year in which the steadiness of Tiger's head was the best, and not surprisingly, that also happened to be his best year with regard to results.
But the dramatic increase in Tiger's scores did not begin to occur until after March in 2009, when Tiger began to experience a dramatic increase in the amount that he dipped his head in the forward swing.
The only problem I have with your premise is it feels a little over simplified. Ok, he drops his head. Why does he do it? I've found a lot of "obvious" problems in the golf swing are actually the reaction to something else. This may not be the case here but it happens so often I would bet money on the head drop being an effect of another problem and not the main problem.
He was also trying to keep Tiger from moving his head off the ball. Which changes his pivot. Which changes his hand path (both back and down). It wasn't just to keep his head from dipping. Maybe one of the Manzella academy can weigh in on this. Is this a cause or effect of something else?
Look at this video linked below. At about the 2 minute mark, we see Tiger with his hands up high at the top of the back swing (an older swing), and his head dip is almost zero in the forward swing. When the hands are higher at the top of the back swing, there really is less tendency to dip the head in the forward swing than there is when the hands are lower.
Bob Toski Analysis of Tiger Woods' Golf Swing. - YouTube