Thanks everyone for your thoughtful responses, this is helping quite a bit!

The suspension consideration is good and perhaps I'll add that to my order just in case. I think I had my mind set on the whoopies since it's the lightest... but thinking back to my last hang with my Hennessy, I think I had 2 options: 2 large trees probably 15-20ft apart that the crappy Hennessy straps couldn't even get halfway around or a cross-creek setup but the trees were really close and I doubt it would have worked with the 11' hammock + whoopies. The cross creek was definitely nice since you could hear the water under you...