Yes, it is better to get 7 days, then call 3 days later and add the rest on. Nobody will be able to get your room and you won't have to move.
Sorry, I think I missed quite a few pages, but can you explain why I couldn't call on "his" Day 2 and start my vacation and snap up the room. I guess I'm wondering if DVC sets up certains rooms when you call in. If they assign a room when you make a reservation, then this makes sense. But if they don't, they just book based on any available rooms, then it is possible that I could get "his" room.
Am I understanding this correctly. If he calls at Day 1 and books the first 7 nights (say arbitrarily at Room A), does this mean that if I call at "his" Day 2 to start my reservation and I am told that there is room available, then I would be given (say Room B). So technically, on my Day 7 (and his Day 8), I would be still given the Room B, while his Room A will remain available to him until his Day 7? Therefore, there is no point calling Day 2 to reserve Day 8...you can just call before his room opens up, which technically is his Day 8 (if he didn't want to add days).
Is this correct?