I don't know much about lineages and all that stuff, that's for historians. I know an outside wrist lock applied properly creates a whole lot of torque and is extremely effective. I love Hapkido and I find it best to steer clear of Hapkido Politics. Real Hapkido is about the style and doing it to the best of your ability. Constantly trying to improve. Honor your teacher and try to make your Hapkido a credit to the name.