He claims his methods can cure stuttering. There is no cure. Stuttering is not a disease. Secondly, if his methods could somehow stop stuttering, they'd be reproducible and tested. But instead he's another grifter peddling a claim that he can cure you of stuttering if you buy his books/coaching. He's bit an SLP and makes unfounded claims such as stuttering is psychosomatic. He's not an SLP and has no standing in the stuttering community.