By Lenn Thompson, Editor-in-Chief Shinn Estate Vineyards gets a lot of well-deserved attention for their Estate Merlot. New York Times chief wine critic Eric Asimov regularly points to it as a favorite. And I consistently appreciate the wine for its quality-to-price ratio (QPR) and it's elegant, food-friendly style.  That's why I came away from my tasting of the Shinn Estate Vineyards 2007 Estate Merlot ($25) a bit disappointed. I expected ripe — this is 2007 we're talking about — but as much as I enjoyed Rebellion, this wine's wild fermented sibling, I wasn't quite as into this one. The nose…