Right now I'm knee deep in revisions. I'm adding scenes, fleshing out characters, and trying to decide if the ending is awesome or really crappy. Good times.
One of the problems I run into every time I revise a manuscript is the chain reaction.
The chain reaction occurs when I decide that the choice the main character made on page 5 really isn't consistent with his character the rest of the story. He must make a different choice. That different choice snowballs into changes on pages 6, 8, and 10 and those changes cause problems with pages 12, 16, and 20. Pretty soon I'm rewriting almost the entire book.
This makes me crazy.
I try to come up with some way I could just not change the thing on page 5, but I'm pretty sure the book will stink if I leave it as it is. I try to patch up pages 6 and 8 so they won't cause problems later. Some of the patches work. Most don't. The chain reaction has taken hold of the manuscript and it won't let go until I rewrite every single thing in it's path.
The interesting thing is, though I hate chain reactions while I'm revising, I love chain reaction revisions once I'm done. They fill in the gaps and make the characters believable.
Do you run into chain reactions when you revise? Is this a problem plotters run into too, or does it only happen to those of us who write without outlines?