gorgeous afternoon in north Georgia’s Blue Ridge Mountains, warm but not hot yet. Aboard John Ezzard’s bright green Gator, we putt-putted toward the hillside vines at Tiger Mountain Vineyards as the late-May sun did its quiet work on tiny clusters of hard green berries. Flowering had been good this year - unlike the devastating frost that wreaked havoc throughout the mid-Atlantic on Easter weekend of 2007, destroying almost all of the white wine grapes and reducing yields of early-ripening red varieties as well.