I for one....always try to be early. In the swaps I've hosted on other sites there always seems to be someone who is late...sometimes for good reason....I try as long as they communicate with me to accommodate. I understand things come up and maybe a better solution when things come is communicate not only with the host but the members of the swap...As I've said I always try to be early just because you never know what might come up...it might be better to drop out than to be overly late.....just my 2 cents