I hit a sweet spot ... I was having trouble wading through my pose for the first two chapters, then I got to an action scene and -- bam! Smooth going. I'm still due to hit those middle sag moments, but I think I've got a feel for the story, now.
For those of you who are into podcasts, one encouragement I have is a podcast called: "I should be writing". It's full of a lot of helpful tips, so look it up at: http://isbw.murlafferty.com/