I actually was able to book 2 consecutive days at BCV in a 1 BR in July 2016 for a November 2016 stay...so it is possible. So long as you complete the transfer prior to 7 months of travel date, you should be able to get something. If you're willing to do a split stay, then it shouldn't be too big of an issue. And if you are booking in March for an october or november stay, I would be willing to bet your waitlist will come through so long as you book single days (i.e., book what you can and then book the single days as fill ins).
To that point, DW and I did a 4 night stay at three resorts.
BLT studio
AKL kidani 1 BR
BCV 1 BR (2 nights)
It was good in that we got to experience three different resorts. Obviously, not ideal for hanging out at the pool, and moving that many times is somewhat exhausting. All in all, I'm glad we did it so we could get a feel for three different resorts. I wouldn't do it again, but it suited our purposes, particularly since we had 61 points that were going to expire. We burned through an extra 50 or so since we had to book 1 BRs...but I'm still glad we got to experience all of the different resort and floor plans.