Lastly When I finally decided to turn my notes into the book A-Z (I started in 75 and finished in 95) There was yet another embouchure out there that I had not yet played.
This is when I studied and learned the Super chops embouchure.
 Each player should find the embouchure that best fits them and work from there.
My books and videos go to great detail when explaining how a brass embouchure works.
These studies covered all major trumpet embouchures & more than 700 stock mouthpieces.
This consistent study has actually caused me to rewrite sections of a couple of my books, so that I could stay current and accurate. He is the person who showed me how things that were poorly described in the Stevens book were really done.
Through High School and College I took lessons from the school professor and took outside of school too. I also learned that some of the absolutes in the Stevens book were NOT so absolute in person. Ken Muckelroy (who had studied under Ghitalla) and Dr.
As an example; I was the first teacher to explain and discuss the "Aperture Tunnel" (TM) in print and explain how this helps to create resonance on a brass instrument.
  I was also instrumental in writing about the 3-D nature of the brass embouchure in my 2002 book "How the Chops Work".
I had some phone conservations and written correspondence with Jerry Callet as well as his book.