My dad has been gracious enough to bring me a huge bottle of Starbucks' Pumpkin Spice latte syrup. I'm doing a Pumpkin Ale for Halloween, and have been mulling over the addition of some of the syrup in the primary. I know it'll lighten the body/increase the alcohol, but will the flavor remain at all? How much would be "just right?" Any yeast strains that you could recommend that would lend a bit of a spicy finish?