Another thing is that a lot depends when you arrive at the controls. In the beginning, I was arriving at controls with a large group of other people. There were line-ups everywhere. Line-ups for the toilets, line-ups for coffee, line-ups for food, line-ups to sleep ...
But by about the halfway point, I had dropped far enough back that there weren't so many line-ups anymore. I was almost alone for a moment or two at Brest.
If 9606 is planning to go with the 84 hour group, he might not have as many line-ups, especially if he sticks to the front of that group.