Collin Morikawa takes Masters form to Hilton Head bid.
Collin Morikawa bounced back from his final round disappointment at the Masters, shooting a six-under 65 first round at the PGA Tour’s RBC Heritage tournament on Thursday. J.T. Poston held the first round lead at Harbour Town Golf Links at Hilton Head in South Carolina after shooting an eight under-par 63. Morikawa, who sat just…