We should probably point out that just because someone did something that worked for them, it doesn't mean that this thing would work for everyone else. I've no idea how much JB stuttered - or stutters, as it were. Some people get past it one way or the other, but others don't. It's better to think of a stutter as something we have to manage on our own terms, and not as something where we can "acquire" the methods of a person who doesn't stutter anymore and apply it.