Most traders pay close attention to spreads, but very few pay attention to slippage.
This is especially true for strategies that use Buy Stop and Sell Stop pending orders to enter the market in the direction of price movement.
When an Expert Advisor sends an order at a specific price, the broker may execute it slightly above or below the requested level. This difference is known as slippage.
At first glance, a few points may seem insignificant. However, if a strategy runs for years and executes hundreds of trades, consistent negative slippage can have a noticeable impact on overall trading performance.
Why It Matters for Dual Striker
Dual Striker is built around a momentum-based trading approach. The Expert Advisor aims to enter the market at the beginning of a price move and stay in the position until the momentum fades.
With this type of strategy, execution quality becomes critically important. If a broker regularly fills orders with significant slippage, part of the potential profit is lost before the trade even begins.
That is why a dedicated execution monitoring module was built directly into the EA.
Built-In Slippage Monitor
Dual Striker automatically measures the average slippage of its own trades.
The calculation is based on internal order data and actual execution prices. As a result, the EA dashboard displays the broker's average slippage in real time.

Figure 1. Trade slippage during a Nonfarm Payrolls news release
This allows traders to evaluate execution quality using real account data rather than relying on broker marketing claims.
The lower the slippage value, the more accurately pending orders are executed and the closer live trading results are to backtesting performance.
My Broker Testing Experience
During the development and testing of Dual Striker, I evaluated the strategy with more than ten different brokers.
I was not interested in bonuses, promotions, or even the lowest spread. My primary goal was to identify brokers that provide the highest-quality execution of pending orders.
Based on my observations, one of the best average slippage results outside major news events was achieved by Vantage Markets.

Figure 2. Average slippage recorded with Vantage Markets
Of course, any broker may experience increased slippage during major economic releases or periods of extreme market volatility. This cannot be completely avoided.
However, under normal market conditions, Vantage Markets delivered the most consistent execution quality among the brokers I tested.
I recommend trading Expert Advisors with Vantage Markets
because they consistently provide some of the most accurate execution for Buy Stop and Sell Stop orders.
Company Website | Open an Account | Dual Striker Expert Advisor
Conclusion
- The spread represents the cost of entering a trade.
- Slippage reflects the quality of trade execution.
For this reason, when choosing a broker, I recommend paying attention not only to the spread but also to the actual slippage of executed orders.
The built-in slippage monitor in Dual Striker tracks this metric automatically, allowing traders to make decisions based on real execution data rather than marketing promises.


