The thing with this indicator is that it redoes itself. Look at tha chart, all of the are in the reversal point, and never the price goes benath or under the signal, this can not happen. If you attach this to a chart, and wait for some while, than take a screen shot, the reattach it, you will se that the signals are different. This is why it is not very good. Oh, and by the way, I don`t remember a good expert based just on one indicator, usually it is a combination of different kind of indicators, like volatility and trend and something more, this kind of thing, this is why it`s called a trading system.