EA vs quality 99.9%

[Sp2562]

I'm running tests with some EAs, initially I was only using mt4 features, but the quality was very low with 50%.


Now I downloaded the "Tick Data Manager" for "Dukascopy" with 99.9% quality.



Question: Should all EAs be run with 99.9% quality?

Only then is it close to the reality of the market?

If any EA gets a profit this way can we trust it to be a good EA?

[Apprentice]

You are trading on MT4?
Can you define "99.9% quality"?

[Sp2562]

When backtesting should the modeling quality be 99.9% to exactly replicate every tick in the market?

Like spreads, floating spreads and every tick moved, without this feature of "Tick Data Manager" the EA result is totally different.


Should all tests be run with 99.9% quality to simulate market reality?