I've made a hammock for my large bro-in-law. It's a double layer Hancock ripstop I weighed as 1.8 oz/yd.
He weighs in around 230# but I've seen him weigh 250+#.
I know the specs, but don't have any experience with this weight range. Also his kids will probably use it and his son is about his size and there may be swinging and other careless/wreckless behavior that will stress the lines more than I ever would.
Any qualms about hanging his weight or more with 7/64 whoopies?
What do you big boys use?