Hey Muushka
We will be there in Nov/ Dec for 13 nights. So the first 7 can be booked all at once. Tammy said the CM suggested calling day by day to make sure we get the rest of our nights.
And we should be there for a few days overlapping. We will be arriving on Nov 28, staying til Dec 11.
As for dropping a day, I dont think it would cause any problems. Just make sure you use those pts within that use year.
BTW, we are booked for that DC!!! We are so excited! Its like going to WDW for the first time, and being like a kid in the candy store