63K...
Whereas a student is cheaper and to send him to LACC does not deprive the strength of another unit.
Quite correct! The very same argument is used by management for NOT transferring ATCOs from Prestwick Oceanic to Scottish Airways for cross-training. You end up with a two trainee situation, (Ocean ATCO in Airways and Student in Ocean), rather than a cheaper single trainee, (Student in Airways), alternative.
experience shows they are no more likly to validate than Students from the College. Indeed if anything they are less likely!!
Sadly, the same also applies!!