For reasons I don't yet understand, the brim and raft combo didn't work. More precisely, the brim and raft worked fine, but the first layers of the actual print didn't stick to the raft. Not exactly sure why as of yet. It may be that the fan can't be used until after the first layer of the model is put down. It would also help if slic3r slowed down that layer as well, just as it does the first layer of the print.