As of this afternoon I've roughly mapped out all the beats of this new book based on Snyder's story beat approach, except for the opening and closing images. I figure I'll add them later on as the writing progresses.
This evening, I created an excel spreadsheet based on the handwritten one JK Rowling used to develop her Harry Potter work. I'll use this to fine tune the beats, sequencing details, and character activity as I finalize the plan for the book. Columns include Chapter, Scene, Day, Beat, Plot Summary, and a column for each character.
Using this method has helped me envision a story more completely than I ever have before. I'm very excited about it. My next step will be to complete the spreadsheet, use it to complete the plot and work around any holes, then begin the writing process.