It's actually a method that voluntary stuttering causes more stuttering. There are some people who do experience this, especially initially,, but it is not universally true. Some of the people who may initially experience more stuttering fine that it tapers off overtime. There's a cool story about James Earl Jones having a director of a movie he was in ask if he would mind including his stutter into the movie. He was open to it, but his agent freaked out because he was afraid it would cause Jones to relapse. Thankfully, they reached out to some expert SLPs about stuttering, and they were told it should not cause issues and it is often recommended to PWS. So his agent said it was OK, and that's why we have a movie where James Earl Jones's real stutter shows! That said, everyone has different experiences. Try it out, and try to push through the initial discomfort. Start in environment where you might feel safer to stutter openly, like tell a friend you trust that you stutter and want to practice it. Then you can try it in places you are less sure about. But if you have issue with it after giving it a fair shot, it's ok to stop too.