I still don't understand everything (I think) ... I know, that the fleet commonality can have a big impact... and I also know how it works... more or less (sometimes not fully realistic, but that's not the point... it's enough to know how it works)... but how's that with the staff costs for serving a route. Do you pay per flight or is it a bit more complex? e.g. more for larger planes? or not so much for the second flight at the same day? ... so, would it make sense to fly a route once with a 300 pax plane instead of 3 * 100 pax? ... all I know is, how I would see this in real life... but... the game might be reacting different.