Just thought I'd add something to this fancy new sub-forum.
I bought one of Brian's Spinntex tarps while I was on the AT this past season. My girl, Genuine Draft, joined me and really needed the extra protection my WB SuperFly provided because she gets cold really easy. This left me without a tarp to have and to hold and call me own (George), so I called Brian.
What a fantastic tarp!!!
I adore the material as it is very light; I believe my tarp w/out lines and stakes is only 7oz (or very close).
There is NO pass-thru moisture. I started carrying a Ziploc with a few paper towels to demonstrate this to other hikers. The outside can be soaked, but you can wipe a paper towel on the inside and have it come back totally dry.
There is no stretch...at all. I'll never carry tarp tensioners in warm weather again.
They are tougher than I would have thought too. Mine took a hit from a falling tree limb in Ewock Village at TD 08. The limb fell from about 30' and was about 1.5" in diameter and probably about 2 or 3' long. I saw it falling, but was too far away to do anything about it except watch. The limb 'bounced' harmlessly to the ground without leaving so much as a mark on the tarp.
When you add in the craftsmanship that Brian puts into his gear with all the great traits of the Spinntex; it would be awfully hard to go wrong with one of these tarps.
Great job Brian and congrats on your very own sub-forum!