It works out okay. But now I have some of my most senior students (1½ years of training) that have lost focus during training. They have hardly progressed during the last 6 months and they are not really acting as good role models for the others). They are not as such bad kids. They behave okay, they just don't really put any effort into their training and they will seem less competent at this grading than some of those going for a lower grade. Age of cause also plays a role here.