Topic: Question about historical data (Data Sources)
When comparing an EA's performance using two different back testing programs -- e.g. FSB and MT4's Strategy Tester -- I understand why it is important to use the same historical data. I've seen numerous times how different Data Sources can result in quite different results.
But what if I've decided to forego using MT4's Strategy Tester because I prefer (and trust) the one in FSB. That is, I'm no longer comparing an EA's results with two different back testers. Is it still important for me to use my broker's data? I mean, what is it about my broker's data that makes it a better Data Source than, say, FSB Demo data?
In Popov's video 6 -- "Importing Historical Data from MetaTrader" -- he recommends only using your broker's data. I would like to understand what quality or property inherent in my broker's data helps the generator create a more robust strategy.
Appreciate any insight...