“Vargo's website claimed, " Alcohol is difficult to light in cold temperatures."”

Wow that’s a big myth. You definitely have the wrong stove if that’s the case. I can light my 0F alcy even when I haven’t kept it warm. The secret is you just touch the lit match tip to the surface of the alcohol—with the correct stove.
Some things that might help:
1. Don’t use tall thin pots unless you’re using the Caldera system. Too much heat escapes.
2. Don’t get excited about a titanium stove. They don’t seem to work in the cold. Titanium is just a heat sink so you lose a lot of energy warming it up. That’s why thin Al cans are faster and more efficient for an alcy stove
3. Your steel bean can also takes up heat. I used one of those for a year. I then went to hardware cloth as a stand and gained 45 seconds heating time.
4. A penny stove is tricky because you can’t see how much you poured in and you can’t see how much is left. Plus it requires an extra loose piece. The open-jet pressurized stove is more versatile.

Just some ideas. Good luck.
-Barry
-The mountains were made for Teva’s