In reality, I do not have a good "mise en place" for my own scholarly writing. I tend to just sit down and do it without worrying about whether I have everything ready to go. As a consequence, I have a lot of lacunae in my drafts that I have to fix later by going back and looking for references, quotes, etc... So my actual approach resembles that of Thomas more than what I recommended myself. Maybe I think that other people could not stand to do what I do, which is to master the subject so much that I can seem to fly by the seat of my pants. For example, my method of doing a peer review is to read the article one day, taking almost no notes, and then to write the review the next day, looking at the article only to find specific examples to quote or cite. I suspect most people would have to take notes, then work from those notes.
So I have a difficult time giving advice to people, because I am a different kind of writer than most. On the one hand, I feel that if I were really efficient and prepared, I would be an even more productive scholar. On the other hand, I can pretty much kick ass the way I am doing things now, so why change?