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Old 01-23-2013, 01:42 PM   #9
mad dog1
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Join Date: Jan 2010
Posts: 4,755

the friction of the string brushing up on the ball will cause the cross string to wear down. once the round string profile has worn down, it's flat. just like motorcycle tire where the center tread is worn flat. that's also why some colored strings will leave colored string marks on the ball. you're leaving string material on the ball as you hit. just like tires leaving skid marks on the asphalt.
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