I’ve fast forwarded through some elements of the snowflake method structure and am now planning each scene. This is very useful as I can now see the book taking shape as a reader might experience it. Writing a synopsis was useful, but I have the feeling that apart from giving me the overall shape of the book I don’t need to spend much more time on refining it until I have the book written. Then I can turn it into a selling document.
I also should probably have done some more character work, but I felt that I knew my major characters enough to just go for it, and actually by having to work out their reactions and actions in each scene I am learning a lot more about them.