NEWPORT, R.I. — The morning may have dawned with dense fog and little breeze on Narragansett Bay, but by mid-afternoon the sky had cleared and the same could be said of any ambiguity regarding which was the best team at the 2017 Rolex New York Yacht Club Invitational Cup. In today's single race, the Southern Yacht Club was as sharp as they had been in the previous 11 races, [...]