Mine is the Expedition Asymmetrical. It is plenty large for me. You are a bit taller, and it may still fit you. Next size up is an Explorer. Chuck and my Son have a Safari, the largest hammocks. The extra room doesn't seem usable to me.
Take some time to study the "Model Comparison Chart". There are many measuring systems there to figure height and weight limits.
The Achilles heal of Hennessy is the rain fly. The standard fly is a catenary cut rig; it is unsatisfactory in a blowing rain. Get the hex fly. It will fully protect the hammock, but blocks the view on both sides.
I was experimenting with, and will now use, a Cooke Custom sewing fly of 10' X 14' to cover down on one side of the hammock, and have a covered patio on the other side. Even the "covered down" side can be raised for better visibility when no storms threaten. This fly can be rigged with a patio on either side, so it will readily adapt to a wide variety of terrains.
If you order the snake skins, get the largest ones. I think all hammocks come standard now with "tree huggers". Those are those long, flat, black nylon straps I had wrapped around the trees in Keith's yard. They don't bite into a tree like a rope does. I leave them on the end ropes for ready use or non-use.
There are many little tricks you can use with a Hennessy, and some that you HAVE to use. I'll show them to you on the Au Sable. There, you can use the Hennessy at all sites, or a tent.
