SAN DIEGO — When Xander Schauffele first dipped his golfing toes into PGA Tour waters, the questions far outnumbered the birdies. Where-to-go stuff. What-to-do stuff. Everything-under-the-sun stuff. Schauffele leaned on another San Diego-area guy, veteran Charley Hoffman of Poway. The text messages flew as he the younger player tried to find his footing among the best club-swinging players on the planet. “I think a lot of it was sort of as a rookie you really are just thrown out into the big scene,” Schauffele said Friday, after playing an even-par round with Hoffman that left him in a tie for…