JC,
In the context of my post, J* are using the trigger of attaining an ATPL to then pay the award conditions.
Prior to attaining the licence, one is considered a junior FO & paid less.
My post simply highlighted the fact, that there is no change to job description or duties only hours attained in the right hand seat as justification to paying less.
In essence a "B" for new FO's with less experience.