This may finally answer a question I have asked before, and I don't remember if I got answers or comments: is the original JRB style suspension "better" so to speak, having fewer of this type of problem? Less of this "sag in the middle" situation even with an otherwise snug suspension, and less change through the night? And, if I'm reading this right, this sounds like a switch to the JRB style?
As Bill (MBM) says:
I hadn't thought of the UQ sagging lengthwise being a problem
I had asked this previously because it seemed to me I had not seen ( or at least didn't remember) any threads about these problems with an JRB MW, and the only real difference in the quilts that I could tell was a perimeter vs "end" suspension. But notice now the post from kk4df about the same issue with the Greylock, which has changed the suspension style.
And it just made sense that an UQ suspended hanging from a shock cord through a channel on it's sides could bunch up, that it's length could change a little as you moved around through the night. Just like we know the entire quilt can shift up or down in position relative to your shoulders, it makes sense that the length of the quilt could shorten even if just a smidgen. Causing a small gap.
Also, this may be why I have always found I have to get my WB Climashield Yeti plenty tight for max performance. Maybe just making up for this tendency? But even with it plenty tight, I have found that once I am settled in, I can often reach out and pull on the quilt, sort of smoothing it out or lengthening it even if just a small fraction of an inch. I guess my butt holds it in in place enough to do this, pulling from the head end.
But there are advantages to that perimeter suspensions, especially with small torso quilts like the Yeti which need to be positioned precisely after you get in the hammock, or maybe again if you move much.
So Bill, what about that? Any problems, using this mod, with getting the quilt where you want it once you are in? Apparently not as you are now warm. But if this is not a problem, what about just abandoning the long shock cord and just switching to an end style suspension?
Anyway, Bill, it sounds like you have supplied the answer to this question I have had. It sounds ass though a suspension that applies tension to the ends of the quilt solves some issues that quite a number of folks have had. Good job!