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Marvin said...but i have grown weary of the random negative outlier...
i want a solid mean reversion, with a strong overshoot on the positive side.

If you have a long series of negative outliers doesn't that make the a reversion to the mean more on the negative side therefore making the strong overshoot to the positive side less strong ???

All I know is this extended period of crap wind is doing my head in !!!