Thats what i wrote. But to train the diaphgram, you need to breath low and against resistance. Its just called "breathing with the stomach" in my country, as your stomach/belly/abdomen or whatever you wanna call it should be the only thing that moves in this exercise. I can only repeat what ive been trained and what helped me. If i go to a state approved speech therapist, i wont doubt her methods. Her diploma must be 15 years old from now. I couldnt speak a single sentence as a kid, and now im close to free from stuttering. Are you a state approved speech therapist by any means?