The maximums extracted from Flinders Petrie measurements and other archeologist are modelised here (gray curve)
The fact that main and secondary maximums don’t follow same decrease law is related either to the way of building or the use of two distincs stone quarries (because Goyon and Tarrel explanations could be true both together). Looking at Merer papyrus, covering stones could be comming from two quarries like Tourah North and Tourah South; that is to say from one massive to another one, stones of the bleachers can be of two different types.
Cheops pyramid 