K90 not very stable on volleys?
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tennisweek.com:
Attacking the net, Federer must have felt the Nike swoosh on his shirt was supplanted with a bulls-eye as Gonzalez blistered a backhand with such force it rattled Federer's Wilson racquet; the ball fell harmlessly into net
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tennisweek.com:
Attacking the net, Federer must have felt the Nike swoosh on his shirt was supplanted with a bulls-eye as Gonzalez blistered a backhand with such force it rattled Federer's Wilson racquet; the ball fell harmlessly into net