Fanatic is not the holy grail of freezing weather sets. In just Sitka, the Incinerator is much warmer and as a bonus compress much better.
I have Stratus, Fanatic, Incinerator pieces.
The Fanatic is only slightly warmer than the Scentlok Revenant (have that too), which isn't Scentlok's extreme weather set.
I almost bought the Uncompahgre set on sale awhile back, but talked myself out of them because 1. Not having a brushed fleece outer made me think they'd be noisy and 2. As a mid layer there are lots of similar options for heat/weight. So you are wearing them as an outer layer and find them quiet enough for that use then?