Pat McGroin
Factory instructors are obliged to teach as per the RFM. You as an individual are entitled to do as you wish. We only insist on the use of 102 during Cat A because that is what it says in the RFM. Nowhere does it say you can use it for OEI landings but you don't have to be a rocket scientist to speculate that a higher Nr might come in handy.
There is a kind of unwritten rule in our business. If you chose to do something not in the book and it works out then you're a hero. If you end up as a hole in the ground or present the boss with a broken aircraft then you are a 'zero'.
I certainly wouldn't 'Continue Flight' with two hot batteries but that's what the RFM says.
Regrettably we don't live in a perfect world. :-(