Before he was a pizzaiolo, Darsky scouted talent for the KC Royals.Go ahead, call Jon Darsky a pizzaiolo, though the Flour Water pizza maker really prefers "dough guy" instead. Since opening last May in the Mission (2401 Harrison at 20th St.), the restaurant has stayed smoking hot, and Darsky's prowess with a peel has made it as far as the pages of the New York Times (a recent piece called him a "skilled operator"). Still, the 30-year-old dough guy has kept a profile practically on par