Where has swing knowledge gotten us? Golf will always involve an element called talent, which also incorporates athleticism. Bubba may not know what vertical swing plane angle he has, but I think he knows how to hit a golf ball with control and far. Instructors like Brian teach better with the knowledge of d-plane, trackman... But does a player need to know the technical stuff to be good? I have had two lessons with Brian, lasting three hours in total, a year apart. The lessons were simple and easy to understand. At the end of them, he had me feeling like I was an athlete! The point is, I could not have digested the same technical information about the d plane and turned that into an athletic motion. Bubba may not know d-plane, but does he need to? He has figured out how to fade, draw, on every shot. When Manzella speaks, I listen because I get better every time he posts, puts out a video or I am lucky enough to see him for a lesson. He does the heavy lifting on the knowledge side, I am happy to take advantage of that knowledge. For a golfer, knowledge of the swing is overrated. For an instructor, it is imperative.