I read the manual first then viewed the video. Thought there was a misprint until I saw the tape. He describes a breathing technique where you contract the lower abdomen while inhaling & relax it during exhale. Somehow I can't get it. I know how to do abdominal breathing. When I've tried this, I end up doing intercostal breathing (upper lung only; expanding & contracting the ribs). Has anybody figured out how to do this and can provide a better description?