Originally Posted by Cyio

I find that the pressure to get the aircraft setup, keep passengers safe, monitor the boarding process etc are all far more important than getting the aircraft setup and navigation put in. Therefore, I wait until the brake drops and the flight is on the clock to run the numbers, enter route, setup performance and such.

Doing it this way ensures that the safety of the passengers is at the forefront of my attention. Once they are safely boarded and we are not under a D+0 crunch, I can then direct my attention to the safety of the passengers in terms of the actual operation of the aircraft. This also allows for proper weather briefings, route briefing and taxi briefings, again, for the safety of the passengers.