Apparently, signature that I used from 2006 no longer tolerated so now deleted.
You might consider custom fitting it though. The thread goes through the logic on that.
Just a note about the double front tie outs on my hammock. Unlike the Blackbird, my hammock does not have have an extra strip of fabric above the zipper. The body is a foot narrower. The ties have a lot more influence on the shape of the body, like they would on a Hennessey. This opens the body up nicely but I it creates a flat spot in the hammock body that is hard to get the UQ up against. If found that when it was cool I had to release one of the tie outs and that resolved the issue. I like the double tie but I'm not sure if I will use it next time.