Ok so now I have other questions based on those responses. So I guess all points are allocated at the time of booking? If I didn't have enough points at the 11 month mark and needed to rent some to make up the difference, then I would have to have the point rental arranged before I would be able to book?
No. Your points for every year until the end of your deed expiration (between 2042 and 2068) are present on your contract the moment you buy that contract. A DVC owner of a 100 point contract at BWV, for example, will have 2018, 2019, 2020, 2021... 2042 points in their contract right now.
When you book has no bearing on whether or not your points need to be available.
When you travel is when your points have to be available. This is an important distinction. If you are booking a stay within your 2019 UY, you can use any combination of the following points:
1- Banked points from your 2018 UY
2- Current points from your 2019 UY
3- Borrowed points from your 2020 UY
4- Transferred points that cover your 2019 trip (whether current or banked - transferred points cannot be borrowed)
5- One Time Use points at the 7-month mark
For example, if you wanted to book today a November 3-10 2019 trip with a contract with a December UY contract, you are booking in your 2018 UY (December 1, 2018 through November 30, 2019). That November trip will be using any combination of the following points:
1- Banked 2017 points
2- Current 2018 points
3- Borrowed 2019 points
4- Transferred points that cover November 3-10, 2019
(OTU points unavailable until April 3, 2019)
This is the post you need to read to understand UY and how your points are allocated.
Understanding Use Year
Before getting too far into what size contracts you should be buying, I'd suggest you look at the sticky resources that are available on the boards to really understand what you are buying.