The people on the video tape did not do the self-study course.
We've had many incredible stories from the self-study. My favorite is Doug Williams story: http://www.learningstrategies.com/Qigong/Intro4.html
Another woman had cancer with six months to live. She and a friend began practicing Spring Forest Qigong together. After two months, there was no trace of the cancer on her MRIs.
Chunyi says that the people can have similar results to the testimonials without having to see him or take his workshop when they practice Spring Forest Qigong 30-90 minutes a day for 2-3 months.
It is a major time commitment, but absolutely worth it.