As a submarine fire control tech, I always thought it was cumbersome to have three full size binders open in my lap during weapon firing drills, casualty drills, everything except calm open water transit. But flipping those pages and grease pencilling things even while in the hot of prepping weapons to leave the tube avoided a LOT of "hurry up and whoops!" mistakes. Sometimes crufty stuff needs a review and rewrite but, n the whole, I'd rather know what happen wrong the previous times and avoid it myself.