Andrew,
Could you give us a bit of information on the common conditions that you will be facing when you go backpacking?
Places of high humidity, frequent rain storms, high winds, etc.
I have the Contrail Tarpent, but have since moved to a poncho tarp and bivy setup.
I found that the Contrail was very easy to setup and used one of my hiking poles to set it up.
1.5 lbs or a little less with plenty of room for 1 person…maybe two if they were very friendly.
Offered good rain protection with the sides pulled down, but in terms of wind, it is critical to have the back end pointing into the wind to deflect/shed wind.
Better yet, with any UL shelter, your site selection of where to pitch your shelter is critical.
Does the site offer wind protection with thick brush or trees?
The Tarptent Rainbow is another unique design where you can use both hiking poles to create a free standing tent and the Rainbow has proven itself very stable in high winds. (see other threads in the forums regarding the Rainbow….there was even a video posted of it in the wind).
If you email Henry, the owner of Tarptent, I am sure that he would be happy to give you his advice on which one of his tents would be best.
Off the top of my head, the choice that Tarptent/Henry has are the Sublite at 1 lb, Contrail 1.5 lbs, and the Rainbow.
Check out Tarptent.com
There are many other manufacture out there who offer good light weight products too, I just happen to know many people who have Tarpents.
This might interest you, but in the Photo Gallery Section, search for an Essay on Point Reyes…there are a lot of photos of different UL tents and gear.
It was a group trip composed of all BPLers, so it offers a way for you to see a lot of UL gear in use.
Hope that this helps and welcome to the world of lightweight backpacking!
-Tony