Slitherine

Forgive me, if I'm mistaken, but it seems that rankings do not take into effect the difficulty level with which the pilot plays at. It seems advantageous, for getting to the top of the list, to play at the lowest difficulty setting. Is difficulty level factored into a pilot's service record score? If so, this should be the the stat which the list is sorted by primarily imo if it intends to reflect the best pilots.