Big Difference Between "Every Tick", And "Every tick based on real ticks"

[yuv98]

Hello,

I developed an EA and tested it on historical data using the Strategy Tester.

When I checked it with "every tick", it made a big profit, with low draw down.

But when I checked it with "every tick based on real ticks" it was a losing strategy, with very high drawdown.

How can it be, such huge difference?

What mode should I trust? 

Thank you,

Yu.

[Alain Verleyen]

Depending of your strategy there can effectively be huge difference, because "every tick" used simulated ticks which can be very different from real ticks. That can lead, for example, to a TP touched before a SL instead of the reverse.

"Real ticks" is the only mode always reliable. Other mode can eventually be reliable too, but it depends of the strategy.

[yuv98]

Ok, so the "every tick based on real ticks" is the more  accurate.

Thank you.