Here's a tip for creating IF10 plans intended to be used with real world weather programs.
When building plans leave the IF10 weather set to ON and set the Departure Winds and the Destination Winds near to the real world weather reports.
Building the flight with the winds set in this way forces IF to use the corresponding runways, when the real weather metars load up. Don't forget to switch IF10 Weather to OFF before setting off in the flight.