"My head is too stationary." Very interesting. Really liked the 'look at the camera and swing' stroke; Jeff's Computer seems to have his motion ingrained pretty well!
Remember, when Jeff made that comment, he was talking about the potential for being 'ball bound' into the Finish. In other words, staying down 'too long.'
To prevent that, he wants his Head to swivel nicely into the Follow-Through (Both Arms Straight position) and then to come up naturally as he moves onto his left side into the Finish. He definitely was not talking about the need to introduce a Bob (up-and-down movement) or a Sway (side-to-side movement, with the Stroke or in reverse) into his Stroke.
And thank you, Matt, for picking up on that marvelous Stroke. If anyone thinks it's easy to look straight into the camera lens and rip an iron shot long and straight and with a beautifully-carved divot, just try it sometime.