in particular the 'grandfather' rights as eventually they will be challenged as being wholley discriminatory, which is exactly what they seem to be
What, you mean the rights that allow a pilot to continue in his existing aircraft command position rather than be displaced by somebody more senior to him? The right that is entirely counter-discriminatory? You do talk some nonsense sometimes HZ123. If you want to participate at least have the decency to know what you're talking about.