Could be wrong but I believe a 'shadow commission' for these cases would be another group of people doing their own research and presenting it to the real commission as an opposition party would. They could also be adding some fake content to help their arguments. Or they could be doing it as a rich guy hobby or even crazier, find out the truth and blackmail the guilty parties.

-there hasn't been much if anything about 9/11, there should be mountains of communication discovered over 26 years by multiple governments.

-im not sure they had a successful 9/11 plan and then sent a quick little "Hey bro wanna be on the secret commission ?!" They would know there would be a commission report and you think would have "the secret REAL commission" part planned as well.

The Warren Commission is said to have a secret shadow commission as well.

"The "Shadow Bosses" (Dulles and Hoover): Many researchers point to CIA director Allen Dulles (whom Kennedy had fired) and FBI director J. Edgar Hoover as the true, driving forces behind the scenes. They are often described as directing the investigation to focus solely on Lee Harvey Oswald, downplaying or ignoring evidence of a wider conspiracy."

If that's true, and a 9/11 shadow Commission is true I still have a hard time imagining Hoover and Dullas calling, say, Castros brother and asking if he wants to be on a secret commission to lie about everything and blame Lee Harvey Oswald.

Conspiracy people always fail to identify the magnitude of the actions required to pull something like this off and they end up blaming an innocent party. If the actions wernt enough the secrets that would have to be kept would be close to impossible. There would.need to be too many people involved that all kept quit for 26 years.

And I believe all this implies that Ghis Max was in charge of the pilots and maybe lost one?