ThanksMarkie.
The ITN web site definitely shows the 12 Dec JNB-HKG seating as a 74J. I have not bothered to register with CX since I don't and won't have enough AA or CX miles to matter, and without registering, I can't get to the CX flight specific seat maps. As I sit here in the Wing, though, the thought just occured to me, I can just go ask. What a concept!