
Marc,
I got my original single wall Moment in 2010 and tested it in October in Colorado's Indian Peaks region on Arapaho Pass at over 11,000 ft. My camp was at treeline (scrub fir trees 7 ft. tall). The constant winds were 35 – 45 mph. with 60 mph. gusts from Weather Service data. At that time I only guyed out the Moment's main hoop pole with just one line on the windward side and used only 2 MSR Groundhog stakes, one at each end. The wind shifted 180 degrees overnight!
No flapping (!) and no deformation of the main pole. That experience confirmed my belief in the Moment's aerodynamics and in the MSR Groundhog stakes' holding ability.
Yes, some spindrift snow did get inside through the floor level mesh vents, proving it was meant for 3 season use.
When I get my new Moment DW I'll do the same as I did for my Scarp 2 and get a heavier duty main pole from "Tentpole Technologies". This will be for alpine winter use. We have mountains just outside of Las Vegas at well over 11,000 ft. (2,000 meters +) and lots of snow at those altitudes.
BTW, I just looked at a Vango Helium 100 solo tent FOR 220 BRITISH POUNDS! And it STILL does not have the many options and features of a Moment DW. Hmmmm… "Caveat emptor"
P.S. Moment DW "storm stability" options:
1. pre-made guylines for main hoop
2. four added fly hem stake loops (small extra cost option or DIY)
3. heavier duty main pole
4. hiking/ski pole end stakeout (as illustrated in Tarptent's product photos)
5. crossing pole (original exterior placement or easily modded to inside the fly)
With ALL of these I'd feel secure in up to 70 mph. winds.
Also note that Tarptent now uses a more impermeable silnylon fly material so there will be no possibility of "mist-thru" in gale driven rains.

