As
dzorn has said, your Use Year does NOT impact when you can call to make
DVC resort reservations : for your Home Resort you can
always call to book as early as 11 months before check in date you'd like :
~ 11 months through 7 months plus 1 day before desired check-in date is always your Owner's Priority Booking Window at your Home Resort. So if your HR is BWV and you would like to book Christmas Day 2012 call on Jan. 25 2012 (when your 11 month Owner's Priority Booking Window opens) to Member Services to book Dec. 25 2012 AT BWV.
~ 7 months or less until the check in date you'd like you may call to book at any other DVC resorts that aren't your HR.
The idea behind picking the 'ideal' UY is chose one where your travel will occur during first 8 months of UY so if you have to cancel 30 days prior to check in then you would still be within banking window and could bank any
Current year's points into the next, upcoming UY ~and~ if you had borrowed & banked points in the reservation you would still have at least 4 months before the UY ends to re-use borrowed & banked points. But, of course, as years pass your travel habits may change so what is a good UY for you now may not be down the road. So many here will also tell you not to be overly concerned with which UY to pick.
There is an excellent thread here by Moderator CarolMN called "Understanding Use Year" that can help you better understand UY.
Best wishes
