A few weeks ago I watched some old matches of James Blake including encounters against Kiefer (Vienna 2002), Agassi (Washington 2002), Safin (Hopman Cup 2004) and Moya (Indian Wells 2003) and it is quite obvious that today's game is far slower than it was then. James was able to generate direct winners off the forehand wing, whereas currently he has to fire his forehand at least two or three times to end the point. I just wonder whether his shots are less powerful now but looking at the shot and serve speeds it is probably not the reason. He uses the same frame as back then in 2002 or 2003, therefore it shouldn't be blamed on the technology of rackets. So what's the main reason - the balls or changes in surface? Or maybe James game is simply slower?