Sorry to start a new thread on bell tents but believe me I have gone through all 10 pages of previous threads and none cover this question. My husband and I are buying our first tent and now think we want a bell tent. One of the websites we have been looking at seem to have gone to polycotton while the others are 100% cotton canvas. Of course their website talks about the positives of polycotton such as durability and mildew resistance but wondering if there are any negatives differences and why I should maybe not go for polycotton option? Thanks so much?