Trading Systems Lab

Practical notes on EA building, MT5 testing, risk control, and market timing. Less hype, more systems.

Tip: Use short keywords like “London”, “ATR”, “spread”, “JPY”.

One File Decides, Another File Acts

Where you draw the line between deciding and trading is the most consequential decision in an EA. A strategy module you can call with plain numbers, a verdict that explains itself — and the failed strategy that proved it was worth it.

MQL5 MT5 Expert Advisor EA development architecture testing tutorial course
2026/09/16

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EA development (1) Expert Advisor (1) MQL5 (1) MT5 (1) architecture (1) course (1) testing (1) tutorial (1)
How to use this blog
  • Pick a session (Tokyo/London/NY) and test one idea.
  • Use fixed risk per trade, then optimize only after stability.
  • Bookmark your best setups and keep a track record.