Hey sa,
I've not spoken to any of the Iroquioian elders, (maybe some of the other members have though) but I was told by some Odawa elders that they and the Ojibwe and other Algonquian groups shot from the scalloped side. That's if the bow has scallops, because the Ojibwe had both types and I presume that other groups did also. Hope that helps some.
rich