If you (as a blackbelt) aren't learning something new every time you step on the floor, you only have yourself to blame.
Master H has a way of being very firm and direct, yet fair. That's one of the many reasons I enjoy training with him when I can. It's something I've been trying to tell my yudanja, and making it far more complicated than it had to be.
It was worth 7 hours of driving to hear.