I mean, stretching words (prolonging vowels) is the most standard speech therapy practice, so he talked about that. I took therapy in my asia continent, and that was the method I was taught of fluency shaping by stretching words. Other than that, other methods just compliment the formal method. That was my take, thats why I shared. I really don't know what else works as stuttering is such a complex issue. I wish I could just wear a magical device and it all goes away 😌