I've been doing the wood repair to this canoe, and this morning decided to work on the outwales. After scraping and sanding off 3 layers of paint, I was pleasantly surprised to find mahogany underneath. The build sheet does not specify any of the woods used, nor a grade. Gotta think ribs are white cedar, planking red cedar, inwales spruce. Decks may be ash. Nothing out of the ordinary there. Was the 50-pounder offered in AA and CS grades? Does the presence of mahogany outwales on this canoe make it a AA? Tom McCloud