RENO, Nev. – Chris Ault, the gray-haired father of the pistol offense, lives in a gated community off Arrowcreek Parkway at the foot of Sunflower Mountain. He wears a light-blue sweater and the shine of a hall-of-fame coach who willingly walked away from football responsibilities after 40 years on campus at the nearby University of Nevada late last month. It’s 9 a.m. on Friday, and his eyes alight when the topic turns to the pistol’s poster boy, Colin Kaepernick, a long-legged, power-armed quarterback for the 49ers. “Nothing about him told us he would be a star,” Ault says. PLAYBOOK: NFC TITLE GAME — 49ERS AT FALCONS Skinny as 6 o’clock, Kaepernick arrived on campus throwing somewhat sidearm – a habit from his baseball pitching days — in Aug. 2006. He stood 6-4, about 185 pounds, and began to digest the offense, an innovative approach that positioned the tailback behind the quarterback, who took the snap a shorter distance back than shotgun. Ault’s experiment was a year old, still in its exploratory phase but it intrigued the freshman. Kaepernick, capable of throwing on the run during rollouts in the traditional Wing T sets he spearheaded in high school, trained his attention…