thanks for sharing. One thought that popped into my mind when I viewed this video, is that stutterers involuntarily have their vocal folds or speech articulators lock up when these speech muscles come together to make a sound. The moment you lips, tongue, vocal chords touch a contact point, the lock up and you're able to continue to the next sound. So I'm sure how throwing more air at the problem will help, if you can't turn on your voice at the start of the sound.