I've done this transit as well and it works fine. As CX check-in was not yet open when I arrived, I waited in the CX lounge (admitted by showing reservation). Later they came with my BP to me in the lounge.
The transfer counter is before immigration and is easy to spot.
The transfer security is the smallest security I've ever seen, and really tells you that this airport does not get much in the way of international transfers. They were pretty lax, didn't even have to take my laptop out for screening.