Every contract has its own use year, so, no, you don't have to match use years to the contract you now own. I own:
BWV--Feb use year(for our trip at Spring break)
BWV--March use year (for our summer trips)
BWV--August use year(for Christmas trips)
our add-on's at OKW are all in March. It's the add-on that needs to match one of your contracts(except resale, I think) Now that I have seen the poll on use years, I understand why only the add-ons in March have ever come thru on the waitlist for points.
I'm not sure if I'm a little impressed or a little disappointed that not one person voted Jan, May, July or Nov. I know that they're not "real" use years, but still....