Well, we tried once and were not successful-wanted to take our daughter and her husband (they are teachers). I wanted a 2BR. My husband and I decided to go in September (last year) and had no trouble booking a 1BR mid month. The resort wasn't crowded at all. I'm sure some people have been able to book August at 7 months? It's worth a try-it's a beautiful resort and I'd love to go back!
First trip on DVC points, and I was able to get a 1 BR for 4 nights in July at 7 months out. I've heard that's impossible, but it made me think anything's possible. Now, when I have to waitlist for the first time, I may change my mind. It's worth a try! Good luck! Oh, and call at exactly 9 am at your 7 month window.