[EdZ]

Let me add some fog! It is possible to make a golf stroke such that the Hands always point at THE plane line. Such an action requires the least amount of physical effort by the golfer since all of one's effort is eventually directed at the aiming point. However, because of the human's bio-mechanical structure, to do so, the club shaft will always be swinging on very different inclined-planes. Dunn was wrong and Hogan very wrong, but they both were effective golfers.

A variation on the original question, edits in green....