Check my post about it. Airflow is a technique to prevent locking of vocal cords under stress. This behaviour is genetic and occurs within 0.7 seconds after an inhale to speak. You skip this period by an exhale to prevent it. It means, it is not a speaking technique, it is just a way to start voice without blocking.But the speech is much more than that. There are some preconditions to fullfil.1. A solid voice 2. Correct and slow articulation3. Avoiding four common mistakes www.stutter-no-more.com