Ever since I knew about it, the Trailstar looked to me quite like what I had in mind for a very versatile, dependable shelter but I never got one (too many shelters already, planned to MMOG, etc) All the recent conversations and pics (excellent threads, I must say) got me thinking about it yet again and I came to this design concern:
In the pics, it's clear the ridges take a catenary shape. I know a catenary curve distributes tension better along the ridge and avoids concentrating that tension in specific places, which is a very good thing. On the other hand, that shape takes the walls inwards and from the pics it seems it does so significantly; with a low pitch, it seems a good part of the periphery is too low to be usable, which would be a waste.
So the question is, would it be possible/convenient to avoid those curves and go for straight ridge lines? Maybe not with Cuben, which is not elastic but at least with silnylon which stretches somewhat. Stretch, in turn, I guess, helps with distributing tensions.
Same question and concern with the lower edges which are clearly catenary cut. This, again, distributes tensions better but makes it more difficult to close those edges when pitching low in bad conditions.
I welcome opinions.