I have been wondering for sometime why in the tennis world there seems to be no one who is recognized as a "Tennis Serve" guru or teacher. The reason I ask this is in golf, in the last say 25 years with the advancement of technology, there have been a handfull of instructors who have done quite well teaching "technique" in golf. If you watch golf today, generally speaking, most all of the guys swings are very similar. Why? Because of the learing curve of what and how power, control and consistency was developed. This was learned by the use of high speed cameras, examining what was going on in the swing and learning this and then teaching it. Why isn't this going on in tennis. Look at Sampras serve. How much better can a serve get? Why is he for the most part not "the" model most young students try to copy. I know physique properties that one must have. But, still I would think one would want to copy his motion. I know in golf it is quite well known that a persons body should be in a certian position at a certain point in the swing. We know ideal impact position and we know how to get there from the top. And we know how to get to a postion in the top to get to a position going down. Why is this not so in Tennis?