Yeah, I find that my chin/jaw area really clenches in a weird way when encountering w's, but I dont stutter on them often. I hate the way it looks though, so Im gonna try and fix that. I find myself closing my eyes A LOT more than I thought I did. I avoid cameras and such but the other day I recorded myself and I played it back today.... the blinking/closing my eyes is sorta overbearing but I think its better than having a jerk-y movement. Good luck, hope everything works out for you :)))