So I tried to smash Shug's record and missed by about 46*! Oh well!
I'm hesitant to start this thread because during this Polar Vertex(PV) there are so many personal bests(PBs) being set, and many of them are at much colder temps than my own. Still, I was surprised at how well I did with what I was using. And I'm not sure I am sure of the reasons why.
First, with record lows being forecast I had to decide what to test. And whatever I tested, I was for the 1st time going to add VB clothing to the mix.
I was really tempted to just do it with my PeaPod and added Vbs and insulation. But I knew in my heart I could get er done with that, so no challenge. This was only going to be at most 5F below my previous PB with that, and I did not even use VB clothing. Same with my JRB bridge hammocks and and MW4 UQ, no challenge and I had already been warm within 5F of the forecast without Vbs.
So, it ended up being my HH Super Shelter. For one thing it was already hanging outside since I had just taken it off an older HH to put it on a new HH. And 2: I have never taken and HHSS below about freezing without adding insulation underneath the pad, and for the most part also using the HH kidney/torso pads. Usually both together if anything below 20 was expected. And 3: no matter how much I have added, I have never taken this system below 14 F. So, HHSS it is!