Yea I've seen and read your post before. I didn't see any block modification techniques used in the approach you mentioned, just behavioural stuff. Voluntary stuttering can really help reduce anxiety about stuttering, for sure. You mentioned it's due to a fear response that we have blocks. Is it the stutter or the fear that comes first, the chicken or the egg? Many people here have been stuttering since they began speaking and didn't have such a fear response as a child. So I believe it is the stutter/block that comes first. Treating the fear response, behavioural and other secondary behaviours that occurs due to stuttering is only fixing one of the symptoms of having a stutter, rather the speech impairment itself.