For the most part I’ve been really happy with my Clam 4000xlt, but there are times I’d like to put a match to it because of the god awful zippers. You guys remember the quality heavy duty zippers they used to put in the old Otter flips? This is what we should be putting in all the shanties. I’m so tired of fighting with these cheap Chinese toys. There has to be a better solution. What about Velcro? Could the entire door be heavy Velcro? Sure it won’t be air tight, but at least you can fasten it, unlike when a zipper pulls off the track and you now have a gaping hole. How about someone makes a quality hub that has heavy duty poles and zippers and a fat a$$ oversize bag it all fits nicely into. I’ll gladly give you another Benjamin or two in exchange for peace of mind that it won’t fail out in the field.