Ha! I love Castelli because they make the only tight that is long enough for me, maybe even a skosh too long. I'd rather have tights an inch too long than 3' too short. I'd trade you but I want the windproofing.

Any way, did you read up on the Summit Tights? What about for your climate? Sporthill marks them as one of their "Zone 3" items for cold, windy days of 0 to 40 degrees.

I don't know much about your winters to recommend or not. Do you get cold easily? I suspect you have more humidity to worry about which, I assume, makes it feel colder. I know I wear more clothes than many people at the same temps just because I'm not used to them. Give me a year now that I've moved. It's 20 out there now. I'm thinking tough.