@ Tim yes I have the Squall 2 for when my wife and I go together and its great but i'm hoping for something sub 17 oz for a solo shelter.
@ Ken No I don't use poles (wiling to buy a carbon fiber pole to minimize weight), I'm 5'9", either entry point is fine but side is easier in and out. However I have used a bivy for years and have gotten pretty good at it. Yes I'm willing to pay for Cuben. Yes I want something sub 17 oz hence the reason I narrowed it down to the above options.
If I can't get a enclosed tent that meets these options then I may go with a really light tarp and a bugy bivy. Not ideal but that may be what I'm left with. In that case i would like to go sub 10 oz.
I've been looking at the Hexamid quite a bit and found that you can get the bottom netting cutout and the ground sheet sewn in to minimize weight. This seems like a great option for me.
Thanks
CG