Either of the "-it's" and Triptease are suitable for the task.
Triptease's construction will make it better with knots, plus has the aforementioned disco feature.
Zing/Lash-It are slippery so knots, including prussics, don't hold as well but the line is sliceable, small and stealthy (depending on color choice).
Skistrees - A hammock structural ridgeline simply sets the sag of the hammock by creating a fixed distance between the hammock ends. Zing/Lash-It are fine for SRL but too light duty for the actual hammock suspension.
I agree with Shug...triptease does in fact light up light up like a disco and does do away with any chance of stealthiness. I have one of the Disco ridgelines, and it most definetly helps to find the hammock in the darkness, but it also makes it easy for someone else to find it also.
I have changed to a ridgeline made from Dyneema and have found the loss of the disco effect to be comforting and more in line with my way of hiding out when in the woods, and cannot be found by others.
I like everything that is stealthy, and night vision is the way to go IMHO/HYOH.
"If'n I'm gonna fall, someone is gonna' watch."
I've been using 1.75 Lash-it for my tarp ridgeline, and use a Klemheist knot on each end made from the same Lash-it, and it works excellent.
You do have to wrap the knot about 4-5 times though to have it hold.
"Is this the best you've got?!!" (Shortoff Mtn., Linville Gorge 2010)
"Life is tough.....it's even tougher if you're stupid!".....(John Wayne)
Is there a difference between zing-it and lash-it?
I guess it also depends on where you are hiking. When I hike in Shenandoah NP, I usually stick to the backcountry trails where I very rarely see any other hikers. Most of the hikers I see tend to like to stay on the AT. I guess it all depends on what you're looking for. I also don't really see the need to stealth camp all that often. I don't actively seek out other people if I am solo hiking, but if they see me, I don't really mind.
zing it: stronger than triptease
triptease: sheathed, and less slippery
i found a direct prusik of triptease on triptease to be satisfactory, the kelty line has a rough exterior and holds prusiks well. it is also fairly stiff, and tangles little while holding knots like bowlines very well. (allowing you to untie a knot, if need be)
another idea for it is if you have a foot left over, tie loops onto your hammock zipper(s) for easy to see exit during nature calls at night
Love you Shug, you've literally transformed my passion for backpacking, I obviously just need a vet's perspective on this issue.