I despise coming into a renovation job where the schedules are not recorded! Just did one where a certain office had to maintain power throughout the project and there were no schedules for the entire project (due to the owner hiring the cheapest EC he could find)!
You can only use a circuit tracer so much. One MPD w/ 7 sub panels.
What we do is keep a handwritten record during the entire project, (filled out as the work progresses) and leave it in the panel until the late stages of the project. We then type out the schedule using room numbers from the prints (ex. - Lght. Rms 110, 111).
Ends up being easy to read despite the small print size and helpful, especially on jobs where room numbers are posted on the doors