The pull force is no joke. I cannot use this system in my back yard because it bends the anchor post on my grape arbor that's set in concrete. I have mine set up with tree straps and one single, long whoopie with 1/8" amsteel. Hang the hammock by the continuous loops from biners hooked to Alpine Butterfly Loops in the main line. Trying to cut down on hardware and this sets up with 2 pair of biners. Biggest problem is the height I need to hang it from the trees so that the sag doesn't put me on the ground.
Like the concept and I've been following your work.
Love is blind. Marriage is an eye opener.