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Ask the Experts
Getting the lead in
Question:
According your Racquet Mass Mover on-line calculator, adding weight less than 9 centimeters from the butt moves the center of percussion (COP) toward the tip, which is exactly what I want. Is this really true or is there a problem with the on-line calculator? When I add 20 grams to the butt of my racquet, the COP doesn't move up (I tested it by hitting my hand against the string).
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