This will be my first game in the "real world", having played through the last half of the Beginner's World scenario. Something I still haven't figured out is the whole question of whether or not to fly in the LF "dead zone" between 23h and 5h. I know that ideally you'd like to have a flight take off before 23h and land after 5h, but that's really only possible with fairly long flights. Is it necessarily true that a short hop during those hours wouldn't make profit? So if I've got an opportunity to send my A320 on a short hop 6 nights a week, should I do so and fill up the schedule? Or would the fixed costs outpace revenue, making it cheaper to just keep it grounded? How can I determine which is best?