Looks pretty nice henderson... Can you set your own lookback period in order to get a standard deviations from a rolling mean (moving average) And Percent from mean and RSI of the ratio.
i wrote a spreader for IB. It trys to buy the bid/sell the offer and once one leg is filled the other leg incremently gets closer to taking lquidity. http://miraclespread.wordpress.com/
Great stuff Murray Ruggiero! Thanks a lot, I'll give a detailed look on it for my manual trading strategy.