Well, we decided to hold off on submitting our dossier as we are reconfirming the address with our facilitator. We have 278 from her email but 274 on a form we received originally. I debated just going with the 278 but I don't think I can spend the next week or two worried about it going to the wrong place on top of worrying about it getting lost! ^_^
As soon as we hear back we will be headed to FedEx. Ah well, plenty of time still! :)