I have a couple of supers from Mann Lake, new this year, that I didn't paint, per some people's suggestion. They are warping pretty badly at the joints, leaving some spacious opennings. My fault for not painting or not using enough nails (I only nailed where the predrilled holes were, now I see a few other places I might add nails)? Or are there better suppliers of supers? It never seemed like those supers went together very well.