Hi gabiscriba,
I do not know if the FTMO demo account and the Challenges/Verification/Funded account uses the same historical data.
Also, please be aware that when testing using MT strategy tester the historical data is limited. So after you do a backtest go to the journal and look for the date of the first trade.
Further, please be aware the MT strategy tester is not the best backtester and has some issues. For this reason the create of EA Studio decided to create a more accurate backtester. Note also the FTMO EAs were created using EA Studio. So in my opinion using the MT strategy tester will give you an idea of how the EAs trade, the results are not very accurate.
Alan,