Originally Posted by
Lefly
"I" class is not available at the moment, therefore I would need the Joker to apply the GUF.
Regarding Avios, since I live in a country where you can earn them only by flying (and BA has become very stingy about it) I prefer to use them in more effective ways, like booking flights that have a high cash price.
Don't forget that the avios boost option in selling miles lets anyone who earns 100k miles a year buy another 300k for 0.92p each