For the Advanced. That said, beginners shouldn't be disheartened, as the small things done and demonstrated in the video, although not really seen, will be understood at some point in your training. You're just not there yet. It is taxing, and it demands your focus and attention because you're doing this drill for a superset of 12, basically. For the advanced trainees, this is a good refresher, as the basics are the main foundation to maintain your skills, as well as your stamina and sharpness, when it comes to self-defense (in this case, FMA).