I think Sasha could probably win with triples and a clean performance, and don't think she really needs a quad to win if she can skate cleanly. There is also the injury worry. However, I also understand why she's trying. One mistake at Worlds in her LP cost her the gold medal, and she saw Shizuka skate cleanly with a 3-3-2 and a 3-3. She also saw Michelle's performance, who also had one mistake and was placed ahead of her. Obviously Sasha wants to be ahead of them. And given Michelle's reputation for skating well in major competitions, Sasha needs to do something other than just try to skate cleanly - while a clean Sasha may be difficult to beat, I'm sure a clean Michelle can do it. If she wants to win, she probably wants to win decisively. How to do it? Well, one way is to increase her technical mark, maybe by doing something the others don't. She said she's working on 3-3s and the quad, right? And she said she'll see how they go. Maybe she sees the quad as a better prospect for her - maybe she has more success on it than the 3-3, maybe she's more confident on it (she seems to know the "secret" to landing it when she gets it right, from her journal). Maybe she wants to get into the record books (as she can't be the first woman to land the quad now, maybe she wants to be the first American woman). Maybe she's pursuing it because it will set her apart if she lands it. Maybe the fact that she can, and has, landed it in practice, makes her want to land it in competition too, which IMO is perfectly understandable. When you're training in hope of winning the world title, what's the point of working to accomplish something in practice and then not making any plans to try it in competition?