EA trades on two 3D virtual spirals (helices) of the first screw axis moves along a trajectory axis of the second screw.
After each crossing prices with spiral advisor to open an order depending on the direction. The purpose of (the average price of products) will be as close as possible to the axis of the second screw.
Classic Grieder, who buy cheap and sell expensive, but altered so that the presence of a trend at 50% of the Advisor will follow the trend, 50% - against. Profit mathematically and experimentally guaranteed! Unfortunately, subsidence, too - they have a direct relationship.
Reducing drawdown = lower profits. These values can be controlled by external parameters EA. Reducing the radius of both spirals lead to more orders, more profit and more loss.
The optimal parameters for different currency pairs and different deposit sizes need to get in the strategy tester. Testing period and timeframe are irrelevant.