Plenty of strap and buckle fans, but whoopie slings are my suspension of choice. A lot of cottage vendors sell complete whoopie suspension kits in the $25-30 range.
However, I enjoy making them myself. Given your size, you might consider using 1/8" Amsteel (2500 lb. breaking strength) rather than 7/64" (1600 lb. breaking strength), though a lot of big fellas are hanging with 7/64 Whoopies.
The general rule of thumb that I've heard is you want a 5 to 1 safety factor. In my case, I weigh 150 lbs., so I'm nowhere near the breaking strength of 7/64" Amsteel (150*5=750). I've got a 10 to 1 safety factor.
With your size, you'd be over the breaking strength of 7/64 Amsteel, and 1/8 Amsteel might be a better choice.
As for tree straps, most folks seem to use 1" polyester webbing, which some cottage vendors list as having a 1500 lb. breaking strength. I'm looking at http://www.strapworks.com and they list their 1 inch polyester webbing as having a 3800 lb. breaking strength. You could also consider 1.5" polyester webbing at 4800 lb. breaking strength.
I'm rather surprised at how often you're on the same page I'm on.
I was LITERALLY just looking at whoopie slings as an option. Can you go from a tree-strap to a biner with no problem, or is there a better way?
Some folks like the biner for ease of use. I don't see much point in it - just another point of failure to me (and unnecessary weight). A lot of people just tie a marlin spike hitch in the strap (using a carbon or aluminum toggle, or even a stick since the toggle is not weight bearing - as Shug says, "Put the whoopie on the knot, not the toggle"), and hook the adjustable end of the whoopie right onto that.
Originally Posted by Gresh
For those who don't care for the Marlin Spike Hitch, Dutch Buckles are wicked cool. I used them for a while, but now I use Dutch Whoopie Hooks. In your case, I'd stick with Dutch Buckles or Marlin Spike Hitch.
I'm not really worried about weight. From the truck to the trees, a few ounces or even a pound or two won't cripple me. I do see your point about it being another point of failure. The more moving parts a system has, the more prone to breakage.
For the cash-light, it looks like the marlin spike hitch is the way to go...eventually, I think I'd like to try a buckle.
AAAAAAAND I just finally did it. Pulled the trigger on the ENO DoubleNest. Now I just need tree straps and whoopie slings and I'm good to go!
(Note: And a tarp, and an underquilt, and a bug net. BUY ALL THE THINGS!)
Very cool. let me know what its like when you get it.