I was in my graduate program with an attorney from Harvard. She was a corporate attorney for around 12 years and never saw the inside of a courtroom. That’s great to hear that it doesn’t affect your work much at all, and is mainly situational. Mine is pretty much consistent, but I do have better fluency when talking to women, playing sports, singing, or times when I’m not contemplating what I’m going to say. The gene runs on my mother’s side of the family, and I happened to end up with it.