I don't think being late is too big a deal... as long as you actually send the gift! I was unfortunately pretty late sending my August gift but I did send it. I never even received one myself... and I think there was at least one other person that hasn't received her gift for July!
I dont know if it was simply a mixup in getting the names out, or if sisters have actually NOT sent out gifts.
"The bicycle was the first machine to redefine successfully the notion of what is feminine. The bicycle came to symbolize something very precious to women - their independence."—Sally Fox