>G2a, a consort of Khafra (M&R) or a cult pyramid (Stadelmann)<

It's not just Stadelmann as Hawass has written:

"Lehner supports the identification as a ritual pyramid, citing the wood pieces from a statue shrine as evidence that it was used for the burial of a statue dedicated to the Ka of Khafre." Lehner has also written about the lack of evidence of any sarcaphagus.

It's also very untypical in having two entrances. Hawass thinks it is a Queen's Pyramid which I overlooked in my first comment.

Jon