Cactus League stats only count for so much. Just ask Brian Dallimore, who hit .500 one spring. Or Randy Elliott, who persists in memory for that .547 performance (29 for 53, 18 extra-base hits) amid the crisp sunshine in 1977. Neither of them stuck around the big leagues long enough to fill a cup of coffee. But Johnny Monell is acting like he belongs – in more ways than one. The Bronx native officially became the “most impressive Giants player in camp” on Wednesday, when he started at designated hitter and went 3 for 4 with a pair of doubles in a 9-5 victory over the Cincinnati Reds at Goodyear. The left-handed hitting catcher is batting .600 this spring (9 for 16), and he crushed a home run Tuesday night. “He’s doing what you want these young guys to do,” Giants manager Bruce Bochy said. Monell’s no pup, though. On March 27, he’ll celebrate his 27th birthday. That same day, Buster Posey will turn 26. Any team could have plucked Monell from the Giants in the Rule 5 draft. So it’s hard to label him as an up-and-coming prospect.