> For the complete documentation index, see [llms.txt](https://smartchoise.gitbook.io/smartchoise-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://smartchoise.gitbook.io/smartchoise-manual/options/strategy-tester-backtest-and-optimization-only/nn-stress-test-mode-worst-case-scenario.md).

# NN Stress-Test Mode (Worst-Case Scenario)

When enabled, the EA simulates a harsher, more realistic trading environment inside the Strategy Tester.

#### When set to **No** (Default) : The EA runs on the **normal, clean tick flow** generated by MT5. This means:

* Minimal or no tick noise
* Stable spreads
* No artificial delays
* Ideal execution conditions

#### When set to **Yes:** The EA switches into **Stress-Test Mode**, which introduces harsher, more realistic behavior:

* Noisy or imperfect tick flow
* Spread fluctuations
* Small execution delays
* Slight distortions in NN entry timing
* More frequent unfavorable conditions

This mode is designed to show the **worst-case scenario** and prevent overly optimistic results.

{% hint style="info" %}

### What It Does

When enabled, the EA simulates a harsher, more realistic trading environment inside the Strategy Tester. It introduces:

* Noisy or imperfect tick flow
* Spread fluctuations
* Micro-delays
* Slightly degraded signal conditions

This mode creates a **worst-case scenario** designed to reveal:

* Potential drawdown during extreme volatility
* How Recovery behaves under pressure
* Whether your risk settings remain safe
  {% endhint %}

{% hint style="success" %}

### Why Use It

Stress-test mode helps you ensure your setup can survive the rare but severe conditions that happen a few times per year. It prevents overly optimistic backtests.

**Recommendation:**

* Use stress mode to evaluate risk and safety limits.
* Use normal mode for general performance comparison.
  {% endhint %}