I received an email saying that the model as presented would take a divot that was equal lengths on both sides of low point!!!!! Which is correct!!!!!
Then the question was why doesnt that happen to the guy on the course. And doesnt this throw the whole notion of low point as being opposite the left shoulder out the window?
Short answer is no, IMO.
That little hoola hoop with a radius that hits a golf ball is a big simplification fer sure but it can despite its limitations produce some interesting clubhead paths , more real world than what you might think at first glance. Despite its single levered , flat as a pancake 2D , fixed radius length, ways.
Here's what Im thinking guys please correct me where you see fit.
K while so while sticking to a one lever model we have seen how when the circle shifts planes , up and down the club heads path takes on a more 3 dimensional nature when viewed from behind , down the line. Dang... those words make it all sound so complicated . Lemme re phrase. If you shift the plane of the circle the actual path of the clubhead looks very unplane like when viewed from the down the line.... with a multitude of possible curved paths. Ah heck maybe I have to draw this better with some actual tracer lines of clubheads etc .
So... we saw what happened with shifting planes and shifting planes do happen. Lets take a look at what things look like when the circles centre moves . And that happens in real life too, IMO. For more relevance lets move it in its own circle which has its own centre . Namely lets move the left shoulder , the centre of the Arm Swing as HOmer called it, about the centre of the pivot located at "a place between the shoulders". Not the head , the head being less correct but making for an easier visual reference point , if you will. Enter a second lever if but momentarily ... Heck just look at the drawing.
Should the centre of the circle (the left shoulder ) move up (as it would through an actual players impact area) the low point of the clubheads actual path moves "back in the stance". Therefor the clubhead would not take an equal length divot on both sides of low point. As is the case for the human on the course.
Good thing we're in the Lab. Ive got my white coat on fer sure now , heck ive got pocket protector , goggles , clip board, martini in a beaker.... slice of cucumber as a good luck charm.
P.S. I should clean that drawing up a little as it looks like he's loading #4 angle through the shot rather than throwing it out. However , it makes no difference to the topic at hand IMO. Namely , low point is always at 6 o'clock but the clubheads actual low point may occur earlier in the stroke.