Hmm, interesting article. Makes some sense, i suppose, if you really think hard on it. If that really is the case, Venus and Serena would be working the power and shotmaking aspect of their game and perhaps neglecting the finesse, consistency and angle aspects of their game. Should they mix it up a little and try to hit with other women? Maybe....My opinion? Do what you were doing when you won 10 collective grand slam titles. Heck, no one can dispute whatever preparation made them win like that...