Lets not forget that ALL KA Freighter pilots had the choice to remain in KA and take command slots in KA. The F/Os have not been shafted as it was their choice to go to CX. Some are on better pay than their counterparts in KA due the CX F/O payscales for SFO.
As for the right of current KA freighter pilots to remain Capt because the aircraft are moving is fallacy. None of the current crop of KA classic skippers would be LHS were the ka freighters be based in HK, Now they want to sidestep their relative low ka seniority to get a B744 command in CX.
How many KA FCS guys made the slightest effort to remain in ka? Very few, the rest simply folded and signed accross.And lets no forget how many were in the DPA? They were happy for the pay rise negotiated last year of course.
Good luck, its great to shot of them.
Why will they find it tougher in CX? They will always be outsiders, see as taking the easy way to command, and never paying their dues.