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AT LEAST PSAR, on monthly charts/ never has the huge error rate of any 5 minute chart.:D:D
EVEN though PSAR lags to much; its also faster than a 50 week moving average, so IF its used only 2 or 3 times in 10 years , that could be helpful.
SO in 520 weeks[10 years] , 2 or 3 time s may help...