Can you tell the difference with / without the beer? I ask because the naked whiz (he is a Big Green Egg enthusiast/professional cook) did an experiment with a bunch of chickens. I think they did, water, beer, dr pepper and coke. No one could tell a difference in taste/texture or moisture.
The main reasoning for this is that even at 350, the beer does not boil and barely steams. Not really sufficient enough to impart a flavor or significant moisture. I still do it with a beer because it is usually an easy way to dispose of natural light or busch that someone left at the house.
NOT knocking your recipe. Just curious what your thoughts are.
Experiment Link iffin you are interested