I really like Reilly's skiing and he says that he follows the Korean short turn technique.
No, it's not close to the Korean demonstrator skiers. Those guys put an arc in the turn, from start to finish, Reilly just jumps on the edges, below the falline.
After watching this a second time, what is the training value in this footage?
He's in the back seat, if you watch closely in the soft snow he's OK with that, but on the hard snow, his ski chatters. He really starts to swing his arms and shoulders, in short turns on hard snow, but is trying to hold back the rotation. The pole swing that creates the problem is based on old school style. THe better Koreans have a "No Swing", Reilly doesn't.
At this level of skiing you have to have all there pieces and parts, together, if you are missing something, like an Essential, it Reilly shows up.