Thread: Federer BLX Prostaff 6.1
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Old 01-12-2012, 05:10 AM   #32
Lambsscroll
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Join Date: Oct 2004
Location: United States
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Quote:
Originally Posted by SandV View Post
Noooo, the K Factor 90 stiffness is 67.
Fed's racket checked for stiffness on a RDC machine came out to 65. http://www.hdtennis.com/grs/pro_racq..._wilson_n.html
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Wilson BLX 90 - Wilson Pro Overgrip - 13 ounces
Wilson Gut 16 / Luxilon ALU Power Rough 16L 50/48 pounds
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