The only problem that I see is that I have only seen youth do ceremonies. I do not think that it is wrong for an adult to do a ceremony, but I think that the ceremony is a role that the youth should play, and therefore giving more emphasis to the cub scouts that the Order of the Arrow is something cool, and that youth are a part of, and not something for "the old guys". I personaly feel that if you want to see more cub scouts move into scouting, and into the Order of the Arrow, then you should use the youth to bridge that gap and not the adults.