As he has grown up, William “Trip” Sanders has outgrown that plastic set of golf clubs and the plastic balls which he used to hit when he was two years old. Good thing, since such equipment is probably frowned upon at Congressional Country Club and, most assuredly, Augusta National. With his eye on a chance at competing at the latter next spring, Sanders will take his driver, a pitching wedge and a putter to the Congressional Country Club in suburban Washington, D.C., this weekend to compete in the regional qualifier of the PGA Tour’s Drive, Chip and Putt Regional Championship.