MSR Wind-Pro pots?

How do they actually work?
And others questions such as
Do they also work with other stoves such as the XG-K?
Pre-planning for my Deep-Cold trip and I have started looking for a really large but UL pot and I came upon the new MSR Wind-Pro stock pot.
If that skirt is efficient why they didn't continue the skirt to the top of the pot
And others questions such as
Do they also work with other stoves such as the XG-K?
Pre-planning for my Deep-Cold trip and I have started looking for a really large but UL pot and I came upon the new MSR Wind-Pro stock pot.
If that skirt is efficient why they didn't continue the skirt to the top of the pot