Whoopie Sling, amsteel/tree hugger method with a slipped buntline hitch, etc. See Grizz's video tutorials on hammock suspension. I think there are 3 now, if I'm not mistaken. They're the go-to for anyone with suspension questions.
"If you play a Nicleback song backwards, you'll hear messages from the devil. Even worse, if you play it forward, you'll hear Nickleback." - Dave Grohl
Don't the tree huggers stretch too? Seeing as they're both webbing.
“I think that when the lies are all told and forgot the truth will be there yet. It dont move about from place to place and it dont change from time to time. You cant corrupt it any more than you can salt salt.” - Cormac McCarthy
So would this set up work:
ENO DoubleNest Hammock w/ Descender Ring Replacement,
Ridgeline tied to Descender Rings with Quick Release Knot,
Tarp tied to Ridgeline with Prussik Knot,
I gotta revise my previous opinion. I hung my hammock and tarp low on a very windy night, when I woke up I found my butt on the ground a little bit. I was not impressed.
What I did, is hung the straps in my backyard hanging spot, except with a ratcheting tie-down in place of the hammock. I put a bunch of tension on the straps and left them out in the weather for a few days. Seemed to stretch them out pretty good- I used them over the weekend and detected no problems... but these are hoops one should not have to jump through to use a product that should work off the shelf.
So I have to agree with those who recommend skipping the Slap Straps. I still think they are not a bad idea, but the execution... not so much.