You don't have to look far.
Federer and Nadal made a change to the surface a condition of them playing.
Nadal said the surface "gave no value to his game" (read: topspin not that effective) and Federer said he had balance problems on the old surface.
I think it's outrageous that the top 2 players should combine in this way to effectively demand a surface be adjusted at a tournament, but there we are.
As I have said elsewhere, it used to be that the players had to adapt their game as best they could to the surface, but now it seems the surface is expected to be adapted to the players.
That's odd. Federer asking for a court to be slowed down?
Why are these organizers seceding control of their tournaments like that? This must be one of the few places where it's done. Hewitt has routinely complained that the Aussies pay no attention to his requests. Henman, well we know what they did with the grass and what that did for his results.
Until now I thought the USO was the only place where they have consciously made the courts the best they can for their own players, but now Paris joins in, and not for their home players. Too weird!