By Evan Dawson, Finger Lakes and Managing Editor Photo: Owner Amy Hoffman, left, works the tasting room on a busy summer day There are not many 90-point Gewurztraminers that have come out of the Finger Lakes, and there has never been a 90-point lemberger. Amy Hoffman, owner of Rooster Hill Vineyards on Keuka Lake, believes she has one of each. And she isn't afraid to say so. "I jumped right on Facebook and said that these would get 90 points," she told me on a busy mid-week day in the tasting room that overlooks the northeast branch of the lake.…