yes probably it's not completely reasonable as there may well be pilots apllying from places where easy ha no bases, but what I mean is: there are different reasons for asking to be transferred to a certain base, some reasons are more "serious" than others. A serious reson may be:"I have a home and a family there so I would like to be based there" while a less serious reason could be:"I want to spend some months there because I like that plalce, their food, their wine, and their girls", It would be fair I think to give priority to those who have a "serious" reason for asking to be transferred over those who have not (while still keeping the first arrived first served basis). May be taking into account nationality is not the best way to do this but there must be a way to make everyone happy.