I have to say this is an intriguing thread.. .But from my point of view as an Executive Club SLF would one of you kind people please tell me who I have to talk to to request the possibility of an upgrade?. .Is it -. .1 Check in - probably not. .2 Staff at final ticket/passport check before boarding . .(see - I don't even know the proper name for this part of the process) - or . .3 cabin crew after I actually board. .AND at what time should I board. .as soon as possible. .middling or. .as late as possible?. .Many thanks