A 35 pws I know had a Lexus for one day before someone ran a shopping cart into it and made huge dent. He said he unleashed a tirade of profanity with zero stuttering. I do not per se suggest this. What it reveals is when a pws shuts out the fact he stutters and speaks with intensity and intent, the stutter is gone momentarily. It is even more interesting how actors can do a 2 hour movie and not stutter when adopting a new identity.