completed EA testing on the data from my broker (Alpari UK). however, needed more ticks for longer time span and therefore downloaded data via MT4 history center. however this came from MetaQuotes Software and now my backtesting results are completely different (compared with what I tested earlier with Alpari data).
how can it be that ticks from 2 different sources are completely different? Market should be same.
would appreciate a feedback.



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