Ok. Anything to do with golf instruction is complicated but I'll try to answer. I have had a number of teachers in the past, read books, played, etc. Like many I'm not sure what I don't understand, and know enough to know my analysis of what is happening is not necessarily correct. Working with Gankas has, for the first time in my life, given me tools and understanding I can trust. This is what I meant by using the word coherent. So many things I've incorporated into my swing previously are now seen through a much brighter light, not right or wrong, seen. The speed with which we went from one idea and posture and movement to another was not random and just kept making a new kind of sense, real sense, understanding. Is he for everyone? Obviously I have no idea. Are there other wonderful teachers, of course as George says all the time. Just a question of where you are in the swing, your own psychology, etc. I watched a lot of YouTube videos and knew I wanted to meet him. For me, it is a revelation. I'm killing my driver, freely and simply by turning, my irons finally have some force and direction. I'm a student again and working on a game I love.