Why I Love Mr Ziegler...
Actually, Cat III is exactly the same as the RTO situation, and the same as any other situation under Airbus philosophy.
If it dings at you: stop what you're doing.
If it nags at you: have a think, but maybe continue...
After 15 years of Airbus, the most problematic situation I have encountered is not in the aeroplane, but rather in view of Chief Pilots reverting to (Boeing) type.