Thanks.
Thinking about it, I've concluded I don't have layers that compliment each other. I was often wearing a kuhl sweater I have over FL merino and then a Kuiu DCS Guide over that. Very warm, but I don't think the sweater breathes well enough to work with the merino. A better wicking layer, and then an insulation layer that breathes better (Polartec alpha) would likely serve me well. Maybe Sitka Kelvin Active? Then add a puffy (Kifaru or others) for the really cold glassing.
My system will need to include all that's possibly necessary for 4-5 days at 10k elevation in October.
