Heading out elk hunting in northern Colorado in early September and am looking for a three man tent to accommodate two hunters. My choices have been narrowed to the big agnes tumble mtnglo and the nemo galaxi. The main reason I have narrowed to theses two is they seem to have the fly and vestibule features I want and I can purchase either for an equal price that is substantially below retail. My main question is which one would hold up best to a substantial rain storm? They both have 1500 mm fly rating and the nemo has 3000mm floor rating, agnes has 1500, is there a difference in material quality that would make one a better choice than the other? Thanks in advance.