I've read several threads lately discussing under quilt suspensions. Seemingly, a trend is developing to add additional suspension lines. These address the challenge of keeping tension on the quilt, locking in the location of it, and keeping it from scrunching up underneath you. All good things.
However, this method appears to add more complexity to the underquilt suspensions. In a quest to accomplish the same objectives yet simplify the system, I have developed an underquilt suspension theory. It's a theory because I haven't built it yet, but want to lay it out here to either turn it into a better theory before I make it a reality, or to shoot it down so I don't waste my time & materials. Here goes:
Place a Klemheist loop with Dutch tarp-hooks on the ridgeline near the head end of the hammock. Run 1.75mm Zing-it to strong cord-locks on each corner of head end of quilt. Adjust position of quilt using these cord locks.
Run reinforcing of 1/2" grosgrain through side channels in quilt, with fixed attachment to each end of the quilt. (Optional)
Run 1/8" shock cord from strong cord-locks on the corners of the foot ends of quilt to another Klemheist loop (with Dutch tarp-hooks) on the ridgeline near foot of hammock (or foot end knot on netted hammock). Adjust the tension on the quilt using these cord-locks.
To adjust upward pull on the quilt, move the Klemheist loops inward toward the center of the hammock to increase it; to decrease upward pull move them outward toward the ends.
In the case if a hammock with a zippered net, attach the quilt suspension to the hammock end knots. Add "triangle thingies" if more upward pull is desired.
As is usual, run 3/32" shock-cord, with cord-locks, in both end-channels at head & foot of the quilt.