This process of revision is going differently from my usual work practices in this regard. I think this is because the book is so structurally different from my previous work. There's a large number of shifting points-of-view, and a lot of complexity. Some of the plot threads are working much better than others, per first reader and agent input. I'm having to shift and strengthen and do some serious darling-killing.
Which of course is difficult to do given that the whole book is structured like a house of cards. I take out a few pieces here and there, move others, revise still others, all while trying to maintain the complex, interdependent structure.
It's difficult work, and is definitely stretching my skill set.
I love this stuff.