I also watched the Valsalva videos of William Parry: [https://www.youtube.com/@stutteringtherapist/videos](https://www.youtube.com/@stutteringtherapist/videos) There was one strategy that I got from the video, that might be helpful to you, which is: In one of the videos William explained that other speech therapists sometimes recommend producing glottal air pressure by tensing the back muscles, abdominal and other muscles. I'm not sure if you have done singing lessions from a professional vocal teacher? I have, and what I learned in the singing lessons is to push/tense these muscles to get the air out (when singing or speaking). However, William has a completely differen method to get the air out, and that is not by tensing these muscles, but by completely utterly relax the muscle, not just relax, but totally letting go and even more than that. In the video he gives an example with a balloon. Anyway, so what I got from the video is, mid-block, if you completely relax all the muscles that produce glottal air pressure. Then automatically (without your intention) all the articulatory, laryngeal and other speech muscles will be relaxed as well and will be able to continue moving during a block. I don't use this technique myself, I have my own way to get passed a block (which is unlearning conditioning / unlinking the primary symptom of stuttering from demands associated with triggers) to achieve a state closer to subconscious fluency.