You’ve got good gear. It sounds as if you just need to adjust what you wear for the hike in to avoid overheating and sweating out your under layers. It’s always tough for me to strip down enough when I start to hike in cold weather. But I know that after I get well started especially when carrying a load or climbing that I won’t need much more than wind protection to stay warm even in very cold conditions. So I force myself to ditch the insulation beyond base layers and wind protection. A heavy hat and gloves goes over a light hat and gloves. It’s uncomfortable to start. After 10-15 minutes of hiking I usually ditch the heavy hat and gloves. If I start to sweat I vent the outer layer. As soon as I stop to glass I get out the puffy jacket and overpants and layer back up before I chill. It keeps me dry so sitting isn’t miserable.
