I've been looking for some 3/8 inch rope to use for a tag line, and having some trouble finding what I'm looking for. I'd like something flexible, strong, low stretch, that knots easily and unties easily. I'm thinking polyester/polyester double braid. What I've found so far all seem to have some issue or another. It's expensive (New England Rope or Samson Rope), limited specifications available, bad reviews, black only (can't see it in the trees very well), made in China described in Ingrish, etc. Anybody got a favorite US supplier for general cordage (not just arborist specific)?