Dear Mr. Popov.
When we look at the chart in the past, all the indicators look good, because they are redrawn.
If we test the indicator in MT4 tester, these indicators look a lot worse, but realistically, no redraw.

Question: When the builder forex system generates a new system and finds it profitable, then your program uses the data in real time or redrawn?

Do You understand what  I mean? I don't speak English well.