This is a continuation of a previous discussion of the subject - [www.maatforum.com] as requested.

Hans wrote -"I suggest we start with where we currently stand with understanding the physical aspects; size, length, direction and internal attributes of the various shafts." Absolutely correct. So first we need accurate and approved survey information before drawing conclusions. But we cannot proceed further if the data is confused.
For the best part of a year I have approached the Egyptology community hoping to track down the truth about shaft exit heights - did Petrie make serious mistakes? Did Gantenbrink survey the pyramid himself? This is not really a question about Egyptology but about scientific integrity. Doesn't anybody care?