Exactly this!There are no guarantees. If you own at BCV, you can book at 11 months from your travel date. Other members who do not own at BCV can book BCV at 7 months from their travel dates.
If you book at exactly 11 months out, you should be successful more often than not. Keep in mind, though, BCV is a very small and very popular resort, especially during the Food and Wine Festival from the end of Sept to mid-Nov, and then through the end of the year (holiday stuff going on). The longer you wait to book after your window opens, the less your chances of getting what you want.
Would be interested in this if there was guarantee that I could stay at Beach Club. How does it work with choosing your resort?
The only way to guarantee with certainty that you will always get exactly what you want with DVC without having to worry about reserving exactly 11 months out is to buy (and use) a set week at one of the two resorts that offer it, Villas of Grand Floridian or Aulani. When Polynesian goes on sale, the set week may also be offered there.
Otherwise, reservations are always first come first served and owners at a resort can start reserving up to 7 nights exactly 11 months from date of arrival at 8 a.m. Eastern online. If you do that, you are highly likely to get what you want at BCV year round. However, there are a few times of year, such as the first week of December, where you could actually be blocked out at 11 months if, for example, you wait until noon to try to reserve a studio at BCV.
Would be interested in this if there was guarantee that I could stay at Beach Club. How does it work with choosing your resort?
FWIW, I've been on the DIS since late 1998 and do not recall anyone posting that they lost out on an 11 month reservation for BCV. (So it must be rare, right?
Since the OP seems to be looking for general information, I will add this. Owning DVC and expecting to get exactly the reservation you need, REQUIRES advance planning. By advanced, I mean at least planning 12-15 months out, (minimum 11 months out). We usually plan 18-24 months out. If planning this far out does not fit your lifestyle, you may want to either reconsider your potential purchase or plan on being happy with staying in another DVC property, (Still requires some advance planning). Even with advance planning of a year or more, there are some accommodations and dates that are difficult to get. Consequently DVC ownership almost always requires some sort of flexibility, whether that be in travel seasons/dates, room type, etc. I will say that planning the way that we do, in 15 years of ownership, we have always been able to get exactly the DVC accommodation we wanted, but we do travel in off season and always book within 5 minutes of 11/7 month window opening. I will also say that I always have a backup plan, I just haven't needed to use it yet.