Is there that much of a difference between a newer generation racquet vs an older one? I'm talking about like from a Head FXP Prestige to the newest Microgel equivalent or a Prince 03 tour vs an 03 speedport tour? If there is, how much of a difference? A match maker difference or is it that most serious players or even players who play alot have to have the newest thing out? I am not trying to stir anything up but was really wondering the differences in every generation that comes out.