Hi
I operate in the middle east and i have noticed that some of my collegues do it as well.. as you have said, i have seen no reference t it in our s.o.p and found no obvious benefit from this action such as saving equipment...etc, maybe they know something we don't
Anyway, since you brought up the subject i will ask around, but i suspect that the reason might simply be to leave the collegue who's going to pick up the aircraft with the choice of selecting his own choice?
Also dosen't make any sense
I will ask around
cheers