I'm struggling to decide when to mail out our wedding invitations for our September wedding in Hawaii. We have a very strict 50 person capacity, but about 75 people to invite. We have already spoken with most of our guests and the majority of them have said they plan to make the trip. We decided to do an A and B list, so my question is: when should we mail invitations in order to give the A list enough time to RSVP and the B list enough time to plan for the trip once some A list people decline. Online blogs say to mail them 2-3 months before the wedding, but I fear that won't be enough time for B list guests to plan a trip to Hawaii.