I'm thinking of getting a 6'x9' cuben tarp from Zpacks.com for $190, using their 1.25mm spectra for guylines, 1.5mm spectra for my ridgeline, and their 6.5" titanium stakes. Depending on how many tie outs I decide to get on each of the long sides (one or two, what do you think? Is 4.5 feet of tarp too much for one tie out point on the long side?), and accordingly, how many stakes (6 or 8), my total tarp weight will be 6.53 oz or 7.09 oz respectively, including all guyout lines, the ridgeline, and stakes. Add a 6.5 oz Equinox Bivy as a rain guard for my bag and as a groundcloth, and my total shelter weight would be 13 and 13.5 oz. Total cost, about $300 plus shipping (actually I got free shipping on the Equinox Bivy which I already bought, but I havent bought anything else yet).
Thoughts? I am new to cuben fibers so Im not sure if this is light by cuben standards, but for me, its a great improvement over a 2 lb Nemo Gogo tent (which when you think about it, is already pretty lightweight at 2 lbs). Sub 1 lb though is another world for me, a world that excites me very much!