Probably came from BA, Ghengis. When they started their last recruitment, they said something like 'should have trained at no more than two ATOs". I asked their chief recruiter how that was going to work for modular students who did their PPL at A, night rating at B, modular theory at C, CPL/IR at D, UPRT at E and MCC/APS at ATO E. All specialist ATOs in their field. She said 'oh no, that's not what we meant, we want to recruit modular pilots, we want to discourage integrated students swapping between ATOs' but the large ATOs have of course used the initial statement as a thing to try and get more business.