I have been reading all the posts with interest and picking up tips along the way. I noticed that a reply mentions allowances made for younger ones, how does this work?
Over the years, the deviation from the years average score will have been analysed by date of birth. This gives a weighting that is added (or subtracted) to the raw score. Some people think it's unfair, others think that it's biased towards either the younger or the elder child.
In reality, it's really quite fair and allows for one pass level to apply to all children. It ensures that, on average, 1/12 of each entry is taken from each month of birth.
Parents don't need to know exactly how it works - only the programmers behind the marking software! But it is fair to all.