Yup, it's a learned skill. I'm still learning.
In the photo, I'm positioning myself so the calf ridge is at it's max. In practice i could shift to make a lot of that go away but I don't like being restricted to only certain positions as I sleep. My goal is to get the UQ to work for any way I choose to sleep.
The next day I got out an started really looking at the problem. What I discovered was that the foot box (where my feet were, in my sleeping bag) was causing the center hammock material to bunch up in the middle. Basically I was getting a bunch of material folding up like an accordion, right down the middle of the hammock, from my butt to the foot end of the hammock. I couldn't feel the bunching due to the sleeping back except for a slight extra press behind my knees. The cold air was being drawn down the center from the gathering material.
To solve this, you have to make sure that you stretch out all of the material in the center by using your feet to push the material towards the foot box. Once the material is no longer gathered, you get a smooth surface and the UQ can do it's job.
This is a problem that I will look out for in the future. It made for an uncomfortable night.
Thanks for posting this. I would have been concerned if I was the only one.
Aka - Roger-Dodger
Backpacker w/QRP Gear - Schofield WI
Above all else, it should begin and end with HONOR!