Ford ( and I hope that's a 65 fastback)!
Quite a bit of mis information here I think.
Anecdotal conversations lead me to believe that the SOI position is a way to enable foreign workers, who domestically do not meet the FOI HK Permanent residency requirements.
Pay is less, but flying duties are probable.
My info is not first hand, but from a " reliable source".
Best you just apply because recruitment conditions are varying.