Justin Rose, using new equipment, opened this week’s Cadillac Championship at Doral with his second-worst tee-to-green round of his season, losing 4.83 strokes.  The Englishman, however, had a cheeky response to that stat on Twitter (X).  “Will use DRS tomorrow after that info,” Rose wrote.  Rose was referring to F1’s Drag Reduction System that would boost a car’s top speed.  The reason he made that connection was because this week, Rose switched to McLaren irons amid the company’s global launch of its golf equipment.  Yes, that McLaren. Known for speeding around a racetrack, not smacking golf balls.  It was a curious decision, because Rose, at 45 years old, is playing some of the best golf of his career. He finished runner-up at the 2024 British Open and 2025 Masters, won in August at the FedEx St.…