I said nothing about this being a spontaneous event. It has taken me my whole life doing this. I dont think I gain anything of value by thinking stuttering is a brain difference (even if it may be). And what is fluency really? I stutter so seldom nowadays so it doesnt bother me, or anyone else, at all. I mean, even perfectly normal people stutter sometimes. I can say what I want whenever I want. Basicly I meditatied a lot after a serious disease and found one day that there was a pattern in my muscle contractions in my body when I stuttered. Spececially in my tounge. Whenever I tried to start a sentence my tounge would be stiff as hell. And when I looked at people who were discomforted that I stuttered my whole body would become contracted. After I figured that out I relearned my body to relax while speaking. (I did this by trying to speak a lot, to everyone, about everything). These muscles are now under my conscious control and even if I start stuttering I can regain control almost immidiently. I do understand your position thought, I have also tried going around my stuttering to gain small victorys. But it has never been a victory for long.