First, waitlist the 25th, and see if you catch it from someone else's walk. This is possible---the Princess half weekend starts on the 26th, and that will be a high-demand weekend for
DVC reservations. But we are getting close to that point, so it might not come back right away.
Second, it is possible that doesn't happen through walking, if for some reason no one who was booked the night before is checking out on the 25th. But now that the 24th is open, that does suggest others were walking (probably for the Princess weekend).
Third, here's the basic idea: Instead of waiting until the 11-month day to book your trip, start a few days earlier, at 8AM each day, booking a trip of similar length, until you can get one. Then, every few days, modify the reservation to move forward as far as you can, until your trip starts on the day you'd originally planned.
In general, you don't have to start that much earlier, especially this time of year. Outside of the runDisney weekend and
maybe President's, February is not a super high-demand time for DVC. However, Resort/Standard at Boardwalk is pretty much
one of the Hunger Games reservations, so...
Fourth: I will stay out of the "is it okay" argument, but there are strongly held opinions.