Thanks for the explanations! I didn’t realize you couldn’t split a booking across use years I thought it just required overlapping booking windows.
If you're not very familiar with
DVC, you might be confusing UY with when you can book, because that's probably the most confusing aspect of DVC.
UY has absolutely
nothing to do with "when" you can book a reservation, but UY has
everything to do with "what points you can use" for that reservation.
Assuming the room you want is available, you can always book a reservation at your home resort 11 months to the day from the desired date of checkin, and you can always book a reservation at a non-home resort 7 months to the day from the desired date of checkin.
To figure out which points you can use, you look at the UY that your desired trip falls in. Say I want to book a trip at my home resort BWV that begins on August 1, 2026, 11 months from today. My UY is September, so an August 2026 trip falls in my 2025 UY (which runs 9/1/2025-8/31/2026). That means my 2025 points are "current" UY points, and I can use those. I can also use any points that I may have banked from my 2024 UY (9/1/2024-8/31/2025), and/or I can borrow points from my 2026 UY (9/1/2026-8/31/2025).
But say that the reservation I want takes 345 points, but all I have in that membership is 300 points. However, I do have another contract with the same home resort that has 50 points, more than enough to complete the reservation - but that contract has an October UY and is therefore a separate membership. In order to use 45 points from that membership to complete my desired reservation, I would have to call MS to transfer the points from the October UY membership to the September UY membership, and I'd also have to ask MS to complete the booking because I would not be able to see those points online.
That's why owners above are advising OP not to buy a small contract at their same home resort but in a different UY when they want to use those points
routinely along with points from their original membership. Having two UY means having two memberships and is like being two different people, and it greatly complicates using points together, especially at 11 months.