Hey ETOPS
I hope that the information that has been posted here by TMAGuide, Abu and myself has been of help.
As for getting the total on board from the Agent or Airline, I doubt it. These figures are entered into the billing system, so I think that they use it for stats.
As for the registration on the flight plans, these are often changed and for whatever reason we don't get the revised plan. Again, I am not blaming any particular agency, as I think both ATC and airline sides are sometimes slack.
As TMAGuide mentions, the airport is changing rapidly, I hope maybe some of the uneccesary things we do can be binned.
Live in hope and all that...
Take care
Sherif