saw this article
http://www.thegearcaster.com/the_gearcas...insulation.html

and was thinking about making a jacket or a quilt using some loose wool. The only place i know of to get some loose wool at the moment is here. http://www.oregonshepherd.com/

does anyone know an easy way to figure out how much wool (in oz.) compared to how much down or synthetic it would take to get the same warmth rating?