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Old 03-23-2012, 03:58 AM   #3
mikeler
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Join Date: Sep 2008
Location: Central Florida
Posts: 18,056
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As you already noticed, regular duty has less fuzz on them. Less fuzz = less resistance to air making them fly through the air faster. It also makes them easier on your arm. For me, using regular duty balls on a hard court is not a big deal, but if you use extra duty balls on a clay court, they just becomes rocks as the extra fuzz just loves mating with clay particles.
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