I have been watching the CX a/c substitution lottery for a while now, and I had a booking in F from HKG to JNB on a Tue in Sept which was a 34C, but this aircraft has been dropped from the schedule for EQV and so I'm in J.

Is this route, when a/c is EQV, served by the 34D or by the 34B or by a mixture? And if its a mixture, is it a predictable one?

(My schedule is too tight to change to a 77A day and of course I know it's too much to hope for that they'll make Tue a 77A day anytime soon...)

Many thanks for any information.

Medicus