So out of mild curiosity, is PADI so gung-ho about you taking their EFR class that they won't accept certification above and beyond what they teach? Because if I'm going to have to take a CPR class from PADI when I'm an EMT, I'm going to be mildly irritated.
That's an excellent question. No, you do not have to take it from Padi but your CPR card does have to be current to get the Rescue certification.