Impulse system. With a sharp price movement the PEGAS advisor determines the candle size and change rate of the candle body. At the close of the candle, the advisor enters with an increased volume (lot) on the rollback. If the price goes in the direction of an open order, then profit taking occurs at a fixed Take profit. If the price does not go in the open order direction, then the position is averaged up to a certain number of orders, after which the first protection system is activated.
Mathematical system. The EA does not use candlestick analysis and indicators to enter a trade. It immediately opens two orders to buy and sell. If the price goes in the direction of the opening, then the order is closed by a short Take Profit. If the price goes in the opposite direction, then averaging takes place, according to the advisor settings. At a certain level of drawdown, the system turns on the protection module and exit from the drawdown.
These systems interact with each other and during a drawdown, the first system (impulse) does not turn on and allows only the second (mathematical) system to work. The Expert Advisor can work in three main modes.