Chris Ault, father of the pistol offense, told me one QB who'd be really good at running it would be: Alex Smith! "An Alex Smith could run the read system also," Ault said. "I remember him at Utah, he would have been an excellent pistol quarterback."
http://www.arrowheadpride.com/2013/5/13/4327768/chris-ault-pistol-offense-kansas-city-chiefs