Perpetually, my hardest to solve hunting equipment issue is how to have warm functional hands for a quick shot in the uplands when it's really cold. I am a year into a final rise vest, and I've really liked it over my old traditional vest in the early season because it's not as warm and I can carry a lot of water. My old vest has a fleece lined pocket, and I still actually prefer that vest late season when it's cold and my dog needs less water (he get's very low MPG, especially when it's warm). When it's too cold for thin gloves I put hand warmers in the fleece lined pocket and I couldn't quite figure out what to do with my final rise, but I've come up with a solution. I have a hand muff warmer with little clips and it actually clips into the front of the final rise pretty well in a way that's not super annoying and very warm. But I will probably still tinker with this issue moving forward.
I also got my first Elk this year, and there's some equipment choices I made in the past knowing I would be elk hunting one day and they all worked great, including my all purpose big game rifle (Tikka 30-06, 3x9 Leupold scope, Trophy Copper ammo) , and a mystery ranch Metcalf.
I continue to love a thin REI merino base layer and a First lite Kiln hoodie for upland, stand hunting, and hiking when it's cold, and I have an 8 year old patagonia nano puff hoodie. With all three of those on, I was bird hunting this past weekend in single digits temps with double digit winds, and it worked great.
Also, one of those battery jump starter and tire inflation combo deals they sell at auto parts stores helped us out of a pickle! Get one!