LynnBlakeGolf Forums - View Single Post - 1-L Machine Concept #9 Regardless of how Lever Assembly Driven . . . Thread: 1-L Machine Concept #9 Regardless of how Lever Assembly Driven . . . View Single Post #3 04-27-2006, 01:59 PM Yoda Administrator Join Date: Jan 2005 Location: Atlanta, Georgia Posts: 10,681 1-l #9 Bm#15 Originally Posted by EdZ ...the true center of the 'circle' that the hands travel on is the 'center point' between the shoulders. ...the ground is hit before low point is reached... IF the left shoulder were the 'center' of the hand/club motion, why then is the 'steady head' considered so important? Wouldn't, if the left shoulder were the true center, the 'stable left shoulder' be as critical? (assuming you agree that efficient circular motion requires a stable center and radius). - the true circular path being the 'no margin for error' choice, a straight line delivery does give more margin for error, but at the expense of efficient circular motion of the hands. As with all things, trade offs give you margin for error, which, I would agree, a straight line thrust does give over a true circular path - but that does not change the true efficient goal of the rock on a string of the hands... [Excerpts by Yoda.] I have numbered the above excerpts from your prior posts and have responded in bold: 1. ...the true center of the 'circle' that the hands travel on is the 'center point' between the shoulders. This statement ignores the Geometry of the Circle and is in direct conflict with the scientific principles of The Golfing Machine. The Golf Stroke is a circular motion, and its radius is the Left Arm and Club. Geometrically, the Center of the Clubhead Orbit lies at one end of the Radius (the Shoulder) and its Circumference at the other (the Clubhead). 2. ...the ground is hit before low point is reached... By definition, the Low Point of the Stroke is directly opposite its Center, i.e., where the Radius (Left Arm and Club) points directly at the ground. Accordingly, that Low Point is directly opposite the Left Shoulder. Therefore, good players take turf when the Ball is positioned at mid-body. If, on the other hand, the Center of the Stroke were 'between the shoulders,' then Low Point likewise would be opposite this mid-body center, and there would be no divot. 3. IF the left shoulder were the 'center' of the hand/club motion, why then is the 'steady head' considered so important? (1) To stabilize the Pivot Motion and (2) to provide a center for the rotating Left Shoulder, i.e., the circumference of the Shoulder Turn. 4. Wouldn't, if the left shoulder were the true center, the 'stable left shoulder' be as critical? (assuming you agree that efficient circular motion requires a stable center and radius). The straight line requirements of the Compression Point do not demand a 'stable left shoulder.' They require only that any Shoulder Motion be centered. The Stationary Head provides the necessary hub for the circumference of the Shoulder Turn. 5. If the left shoulder were the center of the motion, wouldn't it be more efficient to stand in a closed stance, zero out pivot, and just make a circle with the arm from the shoulder joint? In a perfect world where Power, Plane and the human body were not considerations...yes. 6. ...and the low point being below the ground, again we see the 'circle' appear to shift its center to the left... There's no appearance of a 'shift to the left' at all. That is where the Center actually is! As previously stated, the Low Point is opposite the Left Shoulder -- the Center of the Clubhead Orbit -- not opposite the Spine. 7. ...the true circular path being the 'no margin for error' choice, a straight line delivery does give more margin for error, but at the expense of efficient circular motion of the hands. A true 'Circle Path' of the Hands requires a Zero Tilt of the Shoulder Turn Axis (the Spine). In turn, this requires a Zero Hip (Weight) Shift. This is fine for Short Shots, but its lack of Power renders it impotent for the Long Game. 8. As with all things, trade offs give you margin for error, which, I would agree, a straight line thrust does give over a true circular path - but that does not change the true efficient goal of the rock on a string of the hands... The Primary Lever Assembly (Left Arm and Club Radius) rotates around its LeftShoulderCenter. The fact that the Turning Shoulder rotates about its own Axis (the spine) does not compromise that geometric fact. Nor does it frustrate the 'efficient goal of the [whirling] rock on a string.' In fact, it enables it! __________________ Yoda Yoda View Public Profile Send a private message to Yoda Visit Yoda's homepage! Find all posts by Yoda