I remember Arlene saying that she always started on 5 and then moved up or down in single digits according to the performance. That seems a very methodical approach and I wonder if the current judges have a similar system? Some of them seem to use a very narrow band and I wonder if they are just giving an impression mark? As a teacher myself I have always favoured Arlene's approach because I had to justify the marks I gave, especially when grading public examinations at GCSE and A level.