What’s the worst riesling vintage of the past decade in the Finger Lakes? It’s an awkward question, given that winemakers in the Finger Lakes love to say that riesling performs beautifully in the regoin no matter the weather. That’s largely true, but it’s also a copout. I’m willing to say that 2007 is the worst riesling vintage of the decade. It was a year of heat and drought, and the result was a region dotted by stressed vines. For red wines, it was generally a success. But for riesling, the balance between ripe fruit and crackling acidity was much more…