OP, I disagree with you on some things, talking in accents is obviously easier, same with using different levels of your voice. But this is not really you and only a short-term solution. For me, a life-long stutterer it would only be working for a short time before coming back completely. And I know many stutterers myself and experts in the field who think the same way about these things, because naturally everyone thought of solving his/her problem of stuttering like this.