This is the thing with skin and hot weather. Comfort is an illusion.. If you only attach the perimeter of a skin unit like many people do with lace, it would be extremely hot and sticky feeling and uncomfortable. When you do a whole head bond, whether glue or got2b, it doesn't feel hot and sticky because the skin is totally against ur scalp and there is no air or oxygen between the skin and base to conduct heat.

that being said, what you are essentially doing is blocking your sweat glands and suffocating your scalp. This might not feel hot on your head, but it might make you hot in general. You release a lot of your heat energy from your head. With it being trapped the heat doesn't escape out of your body as easily. so yeah.. Wearing a skin system with a full head bond might not feel hotter on your head, but I believe it can make you feel hotter overall.