11-year olds are not that heavy, on average, and being twins they might weigh in quite identically. Moreover it all happens quite near the centre of gravity. The W&B sheet needs to be done, of course, but it seems extremely unlikely there could be any kind of difficulty. Of course there are those who like to search for potential causes of trouble, just for the sake of causing/seeking trouble...
Somewhat parallel to the basic discussion, there is no reason to doubt Mr. Bazz did a correct job of flight preparation, including the W&B. Anyone who questions the flight preparation job will either have to offer solid proof, or make a fool of themselves.
Last edited by Jan Olieslagers; 1st Dec 2019 at 15:17.