Unless you want to stay in a CFW Cabin at peak times of year, I think booking at 7m is a good plan you have.
Even with a fairly high owner usage rate, cabins have a decent probability of having reliable 7m availability, except at certain times of year.
Two things are true about every resort:
- Owners leave some inventory available at 7m due to point non-use or SAP.
- Every resort has some sort of imbalance of popularity within the room categories, where certain rooms make it to 7m more reliably.
We regularly see 7m inventory, even at very hard to book resorts:
- VGC has an extremely high owner usage rate, and 1BR/2BR make it to 7m fairly often.
- VGF has a high owner usage rate, and TPV/LV Resort Studios make it to 7m most of the year, plus some 1BR/2BR do too.
- Poly has an unknown-to-me owner usage rate (I don't think it's high), but Bungalows (~30% of points) always make it to 7m and Studios do most of the year, too.
- BWV has an unknown-to-me owner usage rate, but 1BR G/P view regularly make it to 7m.
- RIV has an unknown-to-me owner usage rate, and most categories make it to 7m, except Tower/SV Studios and sometimes SV 2BR and PV Studios.
All of the above 'makes it to 7m' categories will just be cabins at CFW--having a resort of just one (or 1 + pet-friendly) category guarantees that unused inventory is that one category.
Will having a single category make owner usage rate higher? I can see it working out like that as no one will be 'blocked' from booking at their home resort due to a specific category being unavailable. But there might also be longterm fatigue from having the same room layout every single year (I think we might see this at the Poly).
But even if CFW has a crazy 90% owner points usage rate (I don't think VGC is even this high) in the 11m-7m window, that means pretty significant inventory available at 7m for non-owners--35 cabins per night on average! And considering some seasons will definitely be sold out (early Dec, Christmas, Halloween, etc.), that means even more availability other times of the year.
Said another way: the cabins at CFW will be the least popular category at CFW and therefore have the highest odds of being available, if anything is available at CFW.
(yes, cabins are the only category, that's my point)