I also forgot a few things this morning:
I might be stupid about a few things, but heating grains/sugars on direct heat (which is what you would have to do with BIIB on a step mash I assume) would probably not be a real good idea flavor wise.
Second, I assume you want to do this to increase head retention, maybe?
Try 1/2 lb. of white wheat in your recipe (5 gallons) if it is somewhat within the style. That might help you cheat a little bit.