I did this yesterday. A Vienna Lager with 45% Vienna, 30% Munich 2, 25% Pilsner and then 2 ounces of Carafa Special III. Spalt Select hops from the start of the boil and then again with 10 minutes left. I added a pack of Diamond and a pack of 34/70 and then hit it with 30 seconds of pure O2 and had activity in 6 hours. I feel like it's going to be really nice.