I am trying to understand the use year. what is the new 100 % ?
A couple years ago (sorry I can't remember when)
DVC changed the banking window from a graduated system to a 'simpler' one date system. Previously you could bank..
100% of your current UY points up to 6 months from the start of your UY
50% up to 9 months from the start of your UY
25% up to 10 months from the start of your UY
Now we are able to bank 100% 8 months from the start of the UY. Some members liked the extra 2 months to bank 100%, where others found a disadvantage that they could not bank some of there points 2 months closer to the end of their UY.
Also, it seems you are talking about the best month, so that you don't lose points. Do you also look at the best month so you have the longest amount of time to book at your home resort in case there is no availability? Thanks!
The best UY is all about being able to bank points, and does not come into play in making the reservation all. This can happen if you need to cancel a vacation, remove a day from your vacation, have a waitlist come through for a smaller point price accommodations or other such reservation manipulations where you have points you can't can't use for the rest of the UY and want to bank.
For example if I really only wanted a studio at BWV but only a 1 bdrm was available for October. I had enough points for the 1 bdrm, even though I didn't want to spend that many, and decided to reserve it and go on the waitlist for the studio. If my UY was December I would be out of luck with those leftover points if my waitlist came through after July 31 (which for BWV during Food and Wine Festival would be the case). If my UY was Oct it would not be an issue. (This example is using current UY points, no borrowed or banked points)
There is a great thread discussing UY. I wish I remembered it's name or originator to link it. Anyone have that?