Routetuner
The only F/O's not given bypass pay are those who are aSSessed Cat "D" or those who've turned down a command course. It's in the CoS and unlikely to be messed with now as it's also in the UK CoS.
What's also interesting is that there is no mention of freighter commands not triggering bypass! The company may claim that the FACA has been replaced by "company policy" but under UK employment law a company are not allowed to degrade your CoS by introducing a new "policy" that rips you off for several thousand pounds a year without your agreement.