I've learned a lot since the field testing that went into this initial review, and have now had the shelter in heavy snows and high winds.
This is a bad weather shelter. And a good one. More on that in future installments of the review.
At 17 oz, that's what you are paying for - weather protection gained by the use of a more robust and stretchy (highly tensionable) fabric.
The Cuben Version will not have the same benefits. Its benefit will be weight savings. The Silnylon version will be your version for seriously inclement conditions.
Now, about the 17 oz weight.
When I initially talked to some ULers about this, they balked at the weight, and why any "solo" hiker would bring that much weight for ... a tarp without a door even. So, there's some education that might need to be communicated about the TrailStar, because if you compare it in a spec table to other shelters, it's not going to stand out.
Last weekend, in the Bridger Mountains, with fire to radiate heat into a big entrance. This pitch used a high door off one of the five "corners", the rest pitched square, like a 'mid. Center pole 46 inches, vestibule pole 51 inches. Tail into the wind. Gusts to 45 mph, piece of cake - deflection, of course, but no flapping. Can you imagine what the 5-corners-to-the-ground pitch at a 36 inch peak is going to resist?