First, hats off to headchange4u, BearChaser, and olddog for their single line suspension work. I expect to get a handful of 1/8" Amsteel some day, soft shackles, bury some whoopies, and then have a no-bling, quick and quiet way to hang. I really like what they have done and recommend it highly. But I already sunk $$$ in hardware! This is an overview shot:
Second, this system depends a lot on carabiners (6, 4 CAMP Nanos from whoopieslings.com at 23 grams each and 2 CAMP Ti at 29 each from REI) and cranking tension into the SLS with a straps and buckles (Warbonnet) used as a sort-of pulley. I took off the tarp to show how it's put together. I slept out there last night and had sufficient clearance with UQ, though barely by morning.
Carabiners A are Ti and clip the straps, which run to buckles with a continuous loop. These straps are at 5'-6" on the tree.
Carabiners B connect the continuous loop to the SLS, which is a self-made giant double-adjustable whoopie of 7/32" Amsteel from Redden Marine. Also clipped to carabiners B are 6' adjustable whoopie suspension from whoopieslings.com
The whoopie slings run to carabiners C, onto which are clipped all manner of things: the hammock, hammock's SRL, UQ, and weather sock. There's no telling what else might live there
The biggest advantage of this system is the versatility of being able to crank tension into the SLS with the straps, which lowers the elevation on the trees. One set of tree straps is eliminated. The 30* angle can be maintained over a greater range of distances, though I have done this only on my trees so far ... who may like me better than other trees would. ;-)