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Old 02-29-2008, 09:03 PM   #208
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A slightly off-topic question.
Does the 630 refer exactly to head size in sq cm? Or is it just a model number ?

Actually my backup rack is a Head Ventoris 660. 660 cm converted is 102 sqi. But when I put the face against my 95" main racket, the heads seem to be the same size.

I have searched the net a lot but am coming up with nothing.
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