Until 2013, Stan was kind of a journeyman player. He hung around the 20-30 spots of the rankings and rarely made the second week of slams. His performance in Masters was also so-so. Many 1st and 2nd round losses with an occasional good run. Then, at the age of 28, he suddenly became a Top 5 player and Slam winner. What did he change? I think he became a bit more consistent from the baseline, especially when moving. His movement also seems to have improved some. Is that enough to make such a big jump in ranking? Has anyone noticed anything else?