and as of when I left (woohoo!!!) a few months ago, there was no SFO paygrade, it having been abolished two or three years back in a very dodgy pay settlement where captains (the majority) had voted in a pay cut for retained F/Os (the minority), to secure a couple of quid per hour rise for themselves.
This meant the highest F/O basic was pegged at around the 30k per year mark. I now understand that the company offer European F/O contracts at 28k euro basic.
Get out while the going is good, lads!!!