Hey guys, looking for any advice here. I have owned a Furnace before but never a Sawtooth Hoody. I am looking for something to use as an outer layer until late October, and as a layering piece for late season here in Iowa. I like the idea of the body mapped insulation of the Sawtooth but I don't really know what to expect. Has anyone owned both the Furnace and Sawtooth and have any opinions on which would be better?