Strap stretch or trees moving??

[Busky2]

I swapped out all the old suspension on my hammocks for Arrowhead straps and rings and I like the ease and speed of setup but, ether the straps have some stretch that I was not figuring on or the trees I am using, and some of them are BIG, are moving closer together as I sleep. I always tie a safety to prevent the webbing from slipping in the rings but I never find my self with the same lay I went to sleep with. Is there anyone out there that has also run into these sneaky trees out there and if so can you tell me how can I spot them quickly and easily avoid them. Or should I be looking at the straps as the culprits?

[JPsax]

this only ever happens to me in palm trees, or if I hang from a branch growing vertically.

[DaleW]

I have Arrowhead straps and no stretch problems. I wouldn't expect straps to stretch much after a couple hangs, regardless of the material.

There aren't too many variables: the straps stretching (or slipping), the way they are fixed (the rings), the hammock fabric stretching, or the trees. I don't know you, so I can't factor in imagination or what you were drinking at bedtime

How much does it change?