Good point! Here is my attempt to write in a simple structure. I think you misunderstood. What I'm advocating is, our core disorder/problem is not repetitions. In your previous reply you give reasons to prefer repetitions (phase 2) over blocks (phase 3). These reasons get your from severe to mild PWS, I agree with you here. Although, I advocate that we need to let go of any reasons (including reasons that you mentioned) to go to phase 1 to become a non-stutterer. Also, what is your reason for defining our core behavior as repetition in relation to a block? Why would you endorse (have a reason for) 'relieving anxiety' by going back to the first letter as a ritual?