Nam is certainly learning to be a good competitor. He's had six clean or nearly clean long programs in a row (at Octoberfest, sectionals, Challenge, Canadians, 4CC and now Junior Worlds).
Adding a second triple axel is a huge achievement for him.
Also congratulations to Roman on his best international competition so far. Although his skating wasn't quite at the level that it was at Canadians, it was still very good.