Halle and Queens are only 250 tournaments and happen at the same time, I.e. technically only one grass tournament pre Wimbledon. It seams that the ATP don't care about grass. On the other hand, Wimbledon is the most prestigious Slam and it's on grass. Obviously, IMHO the number of master 1000s should be equally distributed amamong different surfaces. Does anyone here know the logic behind that? Thanks for enlighten me.