After discussing with a master roaster at a local coffee shop in Frederick, MD we decided that an extreme espresso blend would go perfectly with the RIS. At about 32oz. I basically did a cold brew with a french press. Boiled the water. Let it cool in the fridge. Added grains and press. Let it sit for a few days in the fridge. Then added directly to the secondary.
Thanks! I will go with this and see how it turns out. How did it turn out for you or i'm guessing its still in the secondary?
And no one had a file of the recipe they want to share...