with many of the replys to this thread....I am not an instructor and I have not taken a DIR/GUE course. But I cannot see why the bouyancy skill cannot be incorporated into the OW classes. Meaning more emphasis on bouyancy. I would assume it would take at least another day to address this skill. The other DIR ideas, such as streamlining should be mainstream in the course teaching. My instructor 4 years ago was anal about being streamlined...eg no danglies........It didn't take any extra time in the course to talk about that. I understand DIR is far more involved than my couple of little examples, but would an extra day working on bouyancy control cost that much more ??