If Poly ever has an 11 month problem, it'll be with Lake View rooms because there are 72 of those compared with 288 standard rooms.
Still not likely.
Think about it this way, even assuming fixed weeks, the only way a Poly room is going to be difficult to secure at 11 months is if dozens of owners are walking for that room.
Let's take an extreme example: say a week had 10 fixed weeks (I'm not sure if any do) and 3 dozen walkers for that hard to get time (that would seem huge) - there'd still be 24 Lake View rooms avail at 8 am 11 months out.
And standard? Same example? Hundreds of rooms avail.
But same example with a room that DOES have 11 month availability: VGF studio first week of Dec: assume 10 fixed weeks (there likely ARE somewhere near that many) and 3 dozen walkers for 47 possible units. That would mean 1 unit avail at 8am at 11 months out. See why that could be a problem?
I think you'll be safe at Poly at 11 months out.