SPIN & ROLL – Zero Skid (Inches)
SPIN & ROLL – Zero Skid (Inches)
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Zero skid / true roll is the point where all skid has been eliminated from the golf ball’s roll (the ball will rotate 360 degrees in the circumference of the golf ball approx. 5.25 inches). A ball after contact has three distinct stages, Launch, Sliding and Rolling. When a ball reaches true roll it is more consistent at holding its intended path.
The point at which a ball reaches true roll is also very important; changes in this value (even with a consistent initial ball speed) will cause the ball to break at different stages on its path across the green.
The speed the ball is travelling determines how much break it is going to take! (Sliding Friction and Rolling Friction are two different equations).
Side spin is detrimental when trying to minimise the distance to True Roll (no skid!). True roll has been a significant focus of putter design and stroke mechanics; however consistency of this value is also very important for pace control and green reading skills. True roll should be approximately 10% to 25% of the distance of the putt, depending on green speed and friction. For example a 20ft putt should be able to achieve ‘True Roll’ by 2ft (24 inches) on a fast, smooth surface.
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Causes of Inconsistent Zero Skid ‘SPIN & ROLL Numbers’ – Range
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RED values in all FOUR previous categories ‘FACE / TWIST / SPEED / LAUNCH`
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What is the relationship of the players putter face and path?
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Are they working together...
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Inconsistent club face rotation or excessive club head twist ?
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Are you hitting the ball out of the same spot (Heel / Toe / High / Low)
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Inconsistent Ball Position – eyes often too far inside the line / or ball forward or back in stance?
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Excessive body movement with hands flipping at impact creates backspin and inconsistent forward / backwards rotation
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Check the putter for the following : Degree of ‘Toe Hang’ / ‘Weight’ (shaft, grip & club head) ‘Length’ / ‘Grip Size’
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Consistency / Range Values How to interpret the numbers...
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Blue / Eagle – Best of the Best!
The equivalent of a robot, it is not possible to do any better as a human being, please don’t try and improve this parameter, just ensure the you understands what you need to do to create such consistency for this parameter.
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These are still very consistent numbers created by the player. Again ensure the You understands what you need to do to create such consistency for this parameter.
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Average range numbers, you are not going to set the world on fire, however they are still more than acceptable ranges..
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Irrespective of the level of golf played by the golfer, ranges in the red are going to hurt them, they display significant levels of inconsistency. Technique and club fitting need to be considered if putting performance is to be improved.
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If you have now understood everything about Spin & Roll Zero Skid (Inches), congratulations.
If you are still having trouble, find out which color you are and click on the corresponding text (e.g. Blue Eagle, Green Birdie, etc.)
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Key Parameters How to interpret the numbers...
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Putter Face Consistency (n=10 putts)