What is your layering technique to shed heat and stay warm while skiing/touring? Rethinking my layering / material choices.

patagonia Capilene Thermal Weight and have the mindset on the way up to stay cold and never sweat.  If you start stripping layers when you are hot and sweaty the rest of the day will be not great.

Wool baselayer, puffy midlayer, shell jacket.

Generally I try to “be bold, start cold”. Thinner wool base layer, lightweight zip fleece and a goretex jacket. I use my puffer when it’s really cold 🥶