This Drill is very simple and illustrative. Thank you for revealing it as it allows me to work out a flaw in my swing.
If I may, a question. You network with some great golf minds. I just watched the Joe Dau video which was highly educational about the importance of set up at address and cause and effect related there to. I enjoy watching your interactions with various different teachers.
One of the most interesting thinkers in the game is Lee Comeaux out of Beaumont TX. Have you ever interacted with him? He hits balls like a machine.
I look forward to your answer and appreciate your thoughtful content.