As far as the corner posts go. Premier also sells 6' long fiberglass corner posts. I use them and I do not have to brace the corners in any way. I don't know about the other fence/netting they sell, but the PoultryPlus netting does not sag.
Jack
I also have the Premier poultry net. I also have problems with foxes and the occasional stray dog. They took more than one when they hit me. I've had the netting up now for a couple of months. I bought 3 100' lengths of the poultry plus netting. It's 4' high and has the double spikes. I used...