Congratulations, SDnoMore! What an interesting conversation. I do believe that SD can be helped a lot with voice exercises, breathing, relaxing, etc. I also have MTD along with SD so I find my whole jaw area tightening up for no reason. I have to consciously focus on it and relax it. However, I still have some hesitation, shakiness to my voice especially if it's tired from speaking. I guess my stance is, I believe the exercises could help greatly but not cure the underlying illness completely. Thanks for posting and I will do more daily to improve my voice.