You are partially correct. It has to do with the fact that the fluency comes from having voluntary control over your Valsalva response. When I gained voluntary control over my Valsalva response I became fluent. I have never had a relapse because I transformed my brain into a fluent brain. You do not have to believe me. This information comes from 20 plus years researching the brain and from a 45 year career as a speech pathologist