Troy Tulowitzki owns a Ferrari but doesn't speed. A teammate recently asked him to race, to which Tulo responded, "Are we in high school?" Tulowitzki's maturation and evolution have spilled onto the field. He's in a transitional stage of his major-league career, learning to trust quality over quantity when it comes to practice. His preference would be to take 50 groundballs during a drill. But now, the Rockies shortstop admitted, "it's closer to 20." For the first time in his career, Tulo is deliberately pacing himself during spring workouts, making sure to leave plenty of time for stretching and flexibility exercises. He cleared another small hurdle in his recovery Friday, running the bases at full speed at Salt River Fields. "It's the best I've felt in years," Tulowitzki said as he watched voluntary batting practice. "It's not like I am faster. It just felt free and easy." Tulowitzki is eager to play in games, wanting to test his surgically repaired left groin. First-year Rockies manager Walt Weiss soon will meet with Tulo to map out his schedule.