the sin base will be very hard work as you will have to fly a minimum of 70 hours a month and seeing it is only a 3 hour flight to hkg you will be flying alot and as allready said cx are in direct competition with sq and will expect so much from you and will give you nothing in return you are better off either going direct to sq or if you wanna live in hkg apply to oasis airlines as they pay 20,000 hkg dollars a month and cx only pay around 9000 hkg dollars