I didn't finish the second rewrite. I think that was a mistake. I may go back and finish it before I go any further on the "final" rewrite. I think that's what's caused me to stall, but there are so many changes I've made that I can't see where finishing the second rewrite will help.
I've dropped the first chapter and started at the second chapter, for one. I think it's a truer beginning, and not just because I chopped off all the exposition and threw the MC into the fire first thing. Better beginning, opened up some room for more time spent hunting out Barukei--which is how I've managed to put all the exposition in where it's needed. I've managed to introduce both Akiro and Akotai this way, and Jaiya, and I've given readers an idea of the political situation and the threat Akotai represents. All I have to do is go back and include the foreboding thread of lava leaking from the neighboring volcano to thicken things a bit.