MIAMIA, Florida: Fourth-ranked Cameron Young rode a hot start and surged to a five-stroke lead after Friday’s second round of the PGA Cadillac Championship. Young birdied four of the first seven holes on his way to firing a five-under par 67 and stand on 13-under 131 after 36 holes at Trump National Doral in Florida. “I’ve just putted really well,” Young said. “I’ve left myself in mostly doable spots when I’ve missed greens. “But I haven’t driven it great and that’s something I hopefully look to return to normal over the next couple days.” Three-time major winner Jordan Spieth, fellow American Alex Smalley and Canada’s Nick Taylor shared second on 136 with American Gary Woodland on 137. Young, who won the Players Championship in March and captured his first PGA title last August at Greensboro, said he feels comfortable with a big lead, well aware it could vanish quickly on the weekend. “I’ve been around the lead quite a bit and I’m not particularly uncomfortable.