Below zero in the AM with crazy wind chills. It's our antler less season and I always get out on New Years. I've got base layers and good parka options. I have a 700 fill marmot puffy and a nice Columbia bow hunting jacket with that silver lining insulate. Which would be better over the base layer as a mid layer? I also have fleece pullover I could use. I'm ground hunting and using a sleeping bag also to keep my feet and legs warm. I'm hoping to stick it out until 11-12. With cold temps movement is sometimes mid morning.