I'd love to read when it's available or in preview mode! The mental organization I think that develops when writing on a notebook is far worth the trouble of typing it on vim later, especially for fleshing out scenes and redrafting.
Not sure if call it mental or physical organization, but there is more crossing out of words and whole sentences, words that I try to fit into small spaces, or arrows to/from outlined areas below with more space. Like:
A technique that I don't know what to call, is the horizontal brace. Like the ASCII 123, but horizontally, to insert something between two words, above or below the line.
A handicap of the notebook, is that you can't find historical data/names/dates so easy, or synonyms... but as I iterate a few times over the text after the first draft, those gaps can be fixed latter while typing the text.
