Exlor
The "step-down" method might work across the ENTIRE spectrum of abilities. Experts might be able to teach Canidates. Canidates can teach Potentials. Potentials can teach norms. And when the Clan gets an Ace... even the Experts could be on the recieving end of teaching! And simply because a feature isn't used in the heat of battle doesn't mean its worthless. After all, the most used and useful feature of the Doom Guards is the external off-switch! Anything that drasticly accelerates training like this is very useful for battle preparedness.