When they released the Notch Li, I spoke with Erica @ tarptent and asked why not try the Dynema on the Pro Trail (their lightest shelter at that time) and she said it had to do with the differant way they have to sew/glue the Dynema. At least that's what I think I heard through my tears. I loved the Pro Trial for summer and early fall but really wanted to try the light weight Dynema so I sold my Pro Trial and picked up the Notch Li. I really like the Notch Li but my name will be on the list of Pro trail Li sales.
HS Tarptent Pro Trail Li
HS Tarptent Pro Trail Li