The microdrills aren't so easy that a person of my rating can do them automatically without thinking at once. That means that the drills aren't so simple that I don't need to do it.
The build up of knight sight is somewhat strange: first you look one move ahead, then three.
I flicked in a drill where you have to look two knight moves ahead myself. That's not easy at all. I'm drilling for more than a week now. It's too early to say something about the effects.