Like a lot of endeavors you start with a model, some assumptions and then later you change the parameters to see how it affects things and what compensations may or may not be required. The basic model still has merit, relevance though especially to the subject in its simplest form........like putting say. That said, Bobby Locke swayed when putting ..... but compensated for it.
In an actual human swing , Homer identified multiple centers , most, maybe all but one, are on the move actually. Given this , he knew the clubhead's orbit wasnt perfectly circular for instance.....but the underlying geometry , the Geometry of the Circle is golfs geometry and you cant draw a perfect circle without a constant center. Which makes for a good starting point for a golf model. Like in 1-L, The Machine with its one steady Center and its one Lever.
Next week lets discuss why the model doesnt have feet or legs and how to cut ours off. The following week let's cover attaching a giant hinge to our left shoulder and why airplanes should have feathers.
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