CBS be gone, Warm butt i have.

[mbiraman]

Thought this might be helpful to some. Over the past couple of weeks i've been testing my winter Yeti with my Lite Owl. I had spent many many days and a few nights adjusting , tightening , loosening, adding over the ridge lifters etc to no avail. I kept getting cold spots at the low end of my butt and from the left side of the UQ. Somewhere i saw someone mention the dual suspension of Adam and Jennies UQ's and it caught my eye. I googled it and came up with Adam's update on suspension he did earlier in the year. I had already been thinking of adding loops on the corners with shock cord to keep the UQ in place and not slip up past my head so when i read this it resonated. I hadn't thought of the UQ sagging lengthwise being a problem . So yesterday i sewed loops on the corners and set it up with shocks cords and line locks to keep it taught lengthwise, adjusted it to get it in the right place for me in the hammock and bingo. Made a couple more slight adjustments and its solved my cbs and draughts. Warm butt i have. Good idea by Adam. So if your in my situation and can't get the right tweak give this a shot,,,worked for me.

bill

[kk4df]

I've done something similar with mine. I have a JRB Greylock 4 UQ, which slides along a shock cord. It already had loops at each of the four corners, so I add a short piece of shock cord at the corner loops which is connected with prussiks to the main shock cord. This keeps the UQ from bunching up during the night, but I can easily move it just by sliding the prussiks. I'll try to get some pictures this weekend.

[dragon360]

Might be something for me to look at further. Adam was going to set up a retro kit (or instructions) for older quilts for us who wanted to the newer suspension. Hope that's coming along

[mbiraman]

Might be something for me to look at further. Adam was going to set up a retro kit (or instructions) for older quilts for us who wanted to the newer suspension. Hope that's coming along

If you have a bit of sewing skills it only takes a few minutes. I used quilting bias tape you get at the fabric stores for the loops. I already had the shock cord and line locks but i think cord locks would work to.

[DivaB]

If you have a bit of sewing skills it only takes a few minutes. I used quilting bias tape you get at the fabric stores for the loops. I already had the shock cord and line locks but i think cord locks would work to.

Cord locks work well, that is all I had on hand before the Grayson Highland hang, and I knew I had to do something with the sagging, they worked so well that I'm leaving it as it is.

[Boomer]

Might be something for me to look at further. Adam was going to set up a retro kit (or instructions) for older quilts for us who wanted to the newer suspension. Hope that's coming along

I actually just did my own revision last spring to my Incubators. There's gross grain along the edges. I cut a hole in it & singed it with a lighter. I then put shock cord through the gross grain to another hole. I put cord locks on each end. I can then tension up the side. Basically looks like the Snipe Hammock tensioner, but on my UQs.

[BillyBob58]

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 *** 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!

Bill

[dragon360]

Actually have some line locks - and seems simple enough!

[WV]

The desired lengthwise tension is often underestimated by those new to underquilts (including me). I learned better when I got a JrB No Sniveller. I wonder how many times the Jacks have had to tell people to read the instructions that came with their underquilts.

Mbiraman, your posts always add to the collective knowledge, and this one is no exception. Thanks!

I've found that there is another factor that can also contribute to "cold spots at the low end of my butt" (my prostate and its associates thank you for that gentile description). If I lie with my legs extended so the top quilt can nestle around me there are minimal air spaces inside the hammock, but if I draw my knees up the space underneath them opens up to allow convection inside the hammock in that vital area. It wouldn't seem that it could make much of a difference between the quilts, as it were, but for me it does. Fortunately, I found a simple solution. I made a small pillow (6" x 12" x 1.5") stuffed with primaloft. I tuck it under my knees when I go to bed, and because of the geometry of a hammock with a body in it, it slides down against my butt. It stays in place absolutely reliably. At first I thought I would need to anchor it to the hammock, but it turned out that was not necessary. (FWIW, YMMV, yada yada...)

[rip waverly]

The desired lengthwise tension is often underestimated by those new to underquilts (including me). I learned better when I got a JrB No Sniveller. I wonder how many times the Jacks have had to tell people to read the instructions that came with their underquilts.

Mbiraman, your posts always add to the collective knowledge, and this one is no exception. Thanks!

I've found that there is another factor that can also contribute to "cold spots at the low end of my butt" (my prostate and its associates thank you for that gentile description). If I lie with my legs extended so the top quilt can nestle around me there are minimal air spaces inside the hammock, but if I draw my knees up the space underneath them opens up to allow convection inside the hammock in that vital area. It wouldn't seem that it could make much of a difference between the quilts, as it were, but for me it does. Fortunately, I found a simple solution. I made a small pillow (6" x 12" x 1.5") stuffed with primaloft. I tuck it under my knees when I go to bed, and because of the geometry of a hammock with a body in it, it slides down against my butt. It stays in place absolutely reliably. At first I thought I would need to anchor it to the hammock, but it turned out that was not necessary. (FWIW, YMMV, yada yada...)

awesome. both to the doubled-up suspension --

and to the butt pillow. i cram my down jacket under my thighs, and as you say WV ,,, it stays well locked into place.

great points everyone! stay warm!