Grounded in science, Hollins Fluency System III is the most sophisticated of the stuttering therapies we have developed. This powerful, proprietary stuttering treatment system incorporates our latest research findings, technology and training methods to significantly improve your ability to learn and retain fluent speech. HCRI Stuttering Therapy: Hollins Fluency System III HCRI's new therapy program release is called Hollins Fluency System III: High Definition Speech Reconstruction for Stuttering™.