Grilling results are in: the ABTs had perfect consistency after 30 min at 350 degrees (medium indirect heat). I did not like the ones that were put over direct heat. They charred too easily on the bottom and had a raw bacon feel on top.
However, I didn't use any wood chunks during the "grilling" which totally changed the flavor. They were good, but not great. So tomorrow morning before the game (at home) I think I'm going to do 30 min indirect heat (medium) with a wood chunk in there to add the smoke flavor. Then when I get to the game I'll heat them up again in a covered tin.
Good discussion and good thought exercise.