I have a WM Flash XR which I really like, but I want to get something warmer as well. I layer an XL sized 100g Primaloft One Jacket over it but I still get a little cold standing around. I've been looking at the Rab Neutrino (with Primaloft Jacket layered over it), Rab Neutrino Plus and the FF Icefall, particularly for the camping trips where we are standing around a lot. If I get cold backpacking I just crawl in my sleeping bag.
I was looking at the Flight pants, but I thought the Helios (which would be equivalent) might be a little more durable given the Endurance shell fabric. I still am looking at the Flight pants though.
I'm in the southern part of the lower peninsula, south of Lansing, but a lot of my winter trips are on the west side of the state near Lake Michigan, so lots of lake effect snow. I'll go anywhere for trips, but the U.P. is quite a drive.