I had an editor… err 3 editors that were responsible for keeping me moving along. Usually an editor gives you milestones or what not. I didn’t reveal to my editors the unique restraints I gave myself. Some editors gave more back and forth than others. Casey Seijas was instrumental in getting the project approved but moved on before the book really got underway, Jonathan Vankin gave the most support and back and forth on Prince of Cats.
Prince of Cats required I move back and forth from script and breakdown because the way all of the pages had to relate to each other. I wrote the script with layouts in mind then I worked out the breaks, changing panel layouts so that the pages could rhyme and then I would change the script as I went around to better rhyme or preserve the beats.
When I am working on my own I move along when I am done with whatever stage I’m on.