The fact is that NG does not teach "face the ball at impact" as you claim for the past 4 years. I posted the evidence which you choose to ignore. You dig up the patent which you know has not been taught in the past ten years, because they found out it was not good for the customers, and that Moe himself did not fit the description, or patent.
You can twist Dr. Mann's work any direction you wish, but you are not fooling any of the readers here. He started his work in 1982 and continued until 1998. His work is based on swings filmed between those dates. Since you are unable to provide any measurements from his work I will take it that there are none available. Maybe if he had an electromagnetic system available at that time he would have been able to measure more accurately.