My experience with the Alexander Technique occurred many years ago on court, hitting balls with Gary Adelman. He too had been trained by Tom Stow, but he was smoother and less effortful than I – something I immediately notice.
We published some of his stuff on TennisOne.com, and then I began many lessons with an Alexander teacher in Menlo Park named Ed Avak.
Though I do explain this poorly – the technique is about widening the shoulders, opening the chest, and elevating the head so as to “free” the neck.
Somehow this precisely informs if not influences the first move on court – whether one can turn to either side without interfering the head and eyes.
An excellent book on the Alexander Technique is by Malcolm Balk – Mastering the Art of Running – well worth your time.
Finally – in the spirit of the Alexander Technique, enjoy the balanced simplicity of Novak Djokovic