Brand new here, and really hoping for some insight. Obviously I LOVE the savings that come with booking SR, but I am so worried about waiting so long to book! I am a planner and like everything set. While I don't mind being surprised by the resort, I am very very concerned that there will be no availability anywhere on my vacation week. I am not a gambler, I guess. Has anyone booked SR in March and did you have any trouble with availability? Is SR typically offered in March? How about December?