So in one you've got a Plane Line drawn for Club Shaft Plane of motion considerations with the camera seemingly set up pretty well all things considered. Situation normal we see this all the time right. You'd normally tend to think that he looped it under plane. But those guys can hit it with their feet and bodies pointed any which way, right.
So where's he pointing his plane line really? Is that what you mean, Luke? Dont judge a book by looking at its foot line or stance? Those inclined plane lines are subject to parallax and further more we dont really know what he is trying to do and we shouldnt make any assumptions given his setup, foot line in particular.
Second one is Sweetspot plane of motion only which shows a nice little 2D ish circle seen in perspective ...which means that circle has a plane and a plane line which appears to point right to some degree. If it points far enough right of where the ball started you've got Divergence, tilted backspin and a draw.
Hmmm. That sweetspot orbit is more telling isnt it! The path of the sweetspot vs face angle is what its really all about I guess right? Well Ill be. In the photo below his shaft even appears to be planed to the sweetspot orbit far better than the assumed plane line . I gotta do some more thinking on this.
Or maybe Im all wrong again and Stricker just totally pooched that shot. Where'd it end up anyways, Luke.
"2-F PLANE OF MOTION All the action of the Golf Club takes place on a flat, inflexible, Inclined Plane which extends well beyond the circumference of the stroke – in every direction. The full length of the Clubshaft remains unwaveringly on the face of this Inclined Plane – Waggle to Follow-through. Every other Component of the Stroke must be adjusted to comply with that requirement. See Sketch 1-L. That includes the Right Forearm. See 5-0. The player must hold the Forearm in the Feel of the same plane per 7-3, dynamically in-line. Picture the javelin thrower with the right elbow and On Plane right forearm leading the hand toward the target (Delivery Line) all during Delivery. See 6-B-1. The Right Forearm of every Hacker comes into Impact too high – pointing beyond the Delivery Line during Downstroke (2-J-3, 7-3). Study 2-G and Components 5, 6, and 7.
Regardless of where the Clubshaft and Clubhead are joined together, it always feels as if they are joined at the Sweet Spot – the longitudinal center of gravity, the line of the pull of Centrifugal Force. So there is a “Clubshaft” Plane and a “Sweet Spot,” or “Swing”, Plane. But herein, unless otherwise noted, “Plane Angle” and “Plane Line” always refer to the Center of Gravity application. Study 2-N. Except during Impact, the Clubshaft can travel on, or to- and – from, either Plane because the Clubshaft rotation must be around the Sweet Spot – not vice versa. So Clubhead “Feel” is Clubhead Lag Pressure (6-C) and is a Golfing Imperative. (2-0). If Lag Pressure is lost the Hands tend to start the hosel (instead of the Sweet Spot) toward Impact – that mysterious “Shank.” When in doubt, “Turn” the Clubface so both the Clubshaft and Sweet Spot will be on the same plane at Start Down. Both Planes always pass through the Lag Pressure Point. Study 6-C-2-A.
There are some very simple but very accurate checks for being “On Plane.” Whenever the Clubshaft is parallel to the ground it must also be parallel to the base line of the Inclined Plane which is usually (but not always) the Line of Flight also.
Otherwise, the end of the Club that is closest to the ground must be pointing at the base line of the Inclined Plane – or extensions of that line, even if they must be extended to the horizon."
So, the Clubshaft is much less important to me than the COG application.
And, I agree with you that there are many questions when looking at a video: Stance Line? Delivery Line? Intended Curvature? Intended Trajectory?
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