Hi, I'm new here so I hope it's OK to join the conversation.
OP, like you I tended to think of myself as the sort of person who preferred to book only 2-3 months out. I kept saying I wasn't interested in committing to a trip 11-7 months in advance. However, this last trip, I started realizing that despite the fact I don't think of myself as someone who plans in advance, I actually do plan my Disney trips 11 months out. Is it possible you really do plan further out than you think, you just don't usually take the plunge and actually commit until closer to the time?
Also, if you're willing to split up stays, I've occasionally gotten
DVC properties using my Annual Pass discount during the Sept-Jan period. I sometimes think Disney might hold a few properties in reserve and won't let DVC people book them in order to make more money out of renting them out as hotel rooms.