Originally Posted by Rambol

That is exactly what I am saying, so I don't see how the first sentence is wrong. But at least we agree on how it works

I think there is some misunderstanding about the definition of ticket I used. When I mention DL or AF ticket I mean the ticket stock (i.e. who issues the ticket). This is irrelevant for flyingblue mileage and possible UXP earning, only the marketing carrier is relevant in this case.