re PaulInTheSky

I don't agree with your assertions. It looks like an unwarranted read-across from US SOP to here. To the best of my knowledge:

1. Self upgraders is an obvious no - to the extent FAs overreact to it http://www.flyertalk.com/forum/catha...cx-flight.html

2. ID90 (staff tickets) rank below all forms of redemption pax - whether using AM or otherwise

3. CX will not fill F with redemption pax:

3.a. CX will attempt to flog tickets for revenue (I mean cash revenue) until 1 hour before departure

3.b. CX will cannibalise premium seats in order to secure that cash revenue. They will sell an F seats as a H if they have to (bump someone in Y to PE, PE to J, J to F based on CIV)

3.c. CX will gradually release redemption seats close-in. Recent experience suggests (long-haul) seats will be released with increasing cabin levels i.e. PE first, J next and F last (with some Fs left til very late just in case an MPC elite uses seat guarantee)

(In short haul regional J gets released first cos no-one wants to pay for that)

4. If there're still seats available then ID90 gets them. I only have limited knowledge here but it is hard for ID90 to get J or F http://www.flyertalk.com/forum/catha...ess-class.html (I think like a cannibalised F seat, a high CIV Y passenger will go to PE, a high CIV PE passenger will go to J and a high CIV J passenger will get bumped up front)

So your non-revs get bumped from J to F is not a CX phenomenon.