Since I am new to posting here if this sounds confusing I apologize ahead of time. If the head cannot remain perfectly still during the swing and even Homer ( if I understand him correctly)basically says to do the best you can to keep it steady, isn't this somewhat a case where "seems as if" produces the feel of a still head that we are trying for even if it is not really still.
That's how I see it paspilot. Science is great, but we don't swing in a test tube.
Kevin
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I could be wrong. I have been before, and will be again.
Here is what our "cult" leader had to say. Pretty hard to argue with this no matter which side of the coin you fall on...
"HOMER KELLEY viewed the Stationary Head as a geometric ideal, not as a mechanical absolute. He recognized our humanity. Hence, his advice: 'Just keep it as still as you can.'"
I am not trying to keep my head still consciously but its a pretty good indicator that something is not right mechanically if its moving around.
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"The only real shortcuts are more and more know how"...TGM
Say the Left Shoulder was the center of your Left Arm and Club's (The Primary Lever's) swing. And say you previewed your exact desired Impact position prior to taking the club back in Startup (Impact Fix): Your ability to return to this exact Impact Position with your Left Shoulder hitting its mark would define how consistent your clubhead orbit was through the ball right? If you were building a machine you'd incorporate some sort of fixed center for the shoulders to rotate around probably. A place directly between the shoulders ideally or for us humans lets say around the nape of the neck but inside our bodies. You could call this an alternate Pivot Center which since the head is above it means the head would move a little given Hula Hula, Hip Slide and Axis Tilt right?
So if at Address you centered this Pivot Center between your feet, held it constant and slid your Hips a little bit towards the target (like some guys do for mid irons on down) ......would the head not move back of center just a tad given the tilt of the shoulders? Would the head not wobble about ever so slightly as you held this other pivot center steady to the best of your ability during the swing?
Here's Homer at Fix: dont think the camera is quite square to him or the ground for that matter but his head is back a tad to my eye. There's a guy I know whose swing I really admire that goes from a Fix like this to moving his Arms back to Adjusted , keeps his Hips slightly slid target wards prior to Startup. Maybe undoes the Hip turn a bit to make his Right Hip clearing smaller. I really like this for mid irons personally. 10-9-C HALF AND HALF, for all you book literalists. He sorta presets the weight left..... really nice centered motion. Much easier to do without excessive Pivot Motion which is far too common.