Consider also his dramatic improvement in what would have to be considered his worst sprint event, the 60m. I'm no expert, but it seems like his height and somewhat slower turnover would hinder him in the 60. But all of a sudden he's the world champ.
I agree that the 200 is Gatlin's best event. I also think he's capable of 19.6 range. Too bad about this injury, but he'll get over it. He's a classic, textbook sprinter and is being expertly coached.