Why do the PPI figures seem to be so sensitive, and why is so much weighting given to each board just played?
This is a relative matter. Because the figures are recalculated every time that you play, you can track small changes in your figure every day. It is expected that for most players, your PPI will tend to vary within a band of around 3 to 5% in the long term. The weighting for each board (assuming you are a regular player) is such that each board that has just been played will account for a sixth of one percent of your figure, so a top or a bottom will increase or decrease your figure by approximately 0.08%. This may seem significant but it really isn’t. Players should expect their figures to regularly go up or down by 2 or 3%. This is not a great movement given the wide spread of PPI figures that there is across the whole field of players. Any lesser weighting would not properly reflect current form.
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