Originally Posted by
herwig
I would recommend to book right away in PLUS if you consider flying it (unless you intend upgrading with points or the PLUS seat is > 250 € more expensive than GO).
You will only be upgraded for one segment at the time, so if you have a stopover and you want to be in PLUS on both flights you need to bid twice.
Thank you very much for your help. Will book with points so that was the reason for asking.