I am missing something. My daughter and I purchased two Double Nests, Slap Straps.
My daughters boyfriend uses my hammock and Slap Straps, he is a big guy over 200 pounds, closer to 310 or 320. He uses my Slap Straps without any problem. Are some of the older straps reliable? I think our hammocks were very old stock, we bought twi double nests for $18.00 each USD. The Slap Straps were $8.00USD we have been using them or 6 or 7 years now for packing trips, not naps in the back yard.
The equipment was new with tags. We bought them in a sporting goods shop on the Oregon Coast, they had lots of both Single Nests and Double Nests, we had our choice of colors.
I can not understand why everyone else is having problems with their straps stretching, unless, maybe they started out with decent straps, and switched to a cheaper material. Interesting anyway, we just went for a four day hang, everything worked great inspite of the rain. Wondering why, everyone elses stretch.