I am not sure about a zipper freezing but I do know that if any type of guy line or bungee type of rope or string gets cold enough it too will freeze and be relatively hard to deal with. I agree with you though that there should be a little savings in weight not having to deal with a zipper at all.. And yes you are right it does look cool as hell. A modern day version of the thing would be a much sought after tent I can guarantee you that. I am surprised that some one hasn't at least made the effort to build one of these things just to see how it would turn out. It would be the "BOMB" today with today's high-tec fabrics and all. For some one with little sewing skills, they should be able to pull some thing like that out of their hat shouldn't they ????? Hope this Helps Happy Trekking...sabre11004....

The first step that you take will be on of those that get you there !!!!! <img src="/forums/images/graemlins/wink.gif" alt="" />