update #2 on Stratos -did a city group ride yesterday morning, about 20F. It was only 10 miles and very leisurely pace but not a whole lot slower than my commute pace. Again, I was colder at the start than in the past but warmed up quickly. No sweat on merino base layer at the end - first time. I can see this jacket might not be the best for warmer temps but that's an assumption. I'm still pursuing a softshell windproof option