I learned mco as the "Small Universe" through studying Spring Forest Qigong. I have used a guided audio for years, and still do - usually but not always, and i do this practice for 30 minutes to 2 hours. I do it daily. i have used home-study materials but also studied with Master Lin in classes in person. I believe he considers this a "core" meditation practice and it is usually the first one recommended for self-healing. He describes it in the back of his Level 1 book which includes the basic sfq movements. In the sfq system you can learn this from the book or the cd. i think the guided cd is really useful.
The small universe and the sfq active exercises will help you make yourself a nicer person, get ready. Yee ha!