As I try to keep rewriting to a minimum as I go along, preferring to keep a steady pace, to keep moving forward, the first draft is usually fairly messy, with contradictions and abrupt introductions of important points (although not, oddly, of important characters - they are the one thing I do think about before I begin). It doesn't matter. Everything can be fixed in the rewrites (and I have already accumulated a fair number of notes for the second draft). And sometimes it is important to fail. To find the way that leads forward by trying other ways first.
Anyway, I'm just back from signing copies of Evening's Empires in Forbidden Planet's London branch. I have to deal with the copy-edit of the reissue of the Confluence trilogy before I head out to Spain for the Celsius232 Festival. And then I'll begin again with the new novel, at the beginning.
The title of this one, by the way, is Something Coming Through. It's about aliens, and second chances.