Should Fish really owe his Atlanta finals to fitness and loss of weight!!!!

Fish told the papers that he had lost 30 pounds before stepping foot at the Atlanta Championships. The American has been struggling with form and and taking care of all the unnecessary fat in his body. Fish has been trainin hard with his team and has been plannin to shed more weight. His weight has been hurtin his knees a lot and has been affecting his performance. Thats what he has to say for his own previous levels of fitness. Fish has improved his game and has proved it by defeating Roddick in the semis of Atlanta championships. So are those sheeded 30pounds makin the difference, and how long will it continue to make a difference