By CHRIS STEVENSON -- SLAM! Sports  SYDNEY - At the world class level, the difference between one colour of a medal and another, or even winning or not winning a medal, can be measured in the smallest ways.
 Guts? Wanting it more than the next person? Extra time in the weight room? How about a visit to a manicurist?
 "Maybe some press-on nails would have made the difference," said a teary-eyed Marianne Limpert after her frantic finish in the women's 200m individual medley came up a nail short of a bronze medal. "Right now, fourth place feels like last."