Backtesting results

 
Hi all,

I have been working on an expert for the last week and I am getting very impressive results from backtesting. I have not imported any data so i am testing only for the last 4 months.

I don't know if the simulation has any real value as the numbers I am getting are too good to be real (>20% profit per month for EURUSD and EURGBP).

How much deviation should I expect when I go live? What percentages are realistic for an MTS?

I would like to hear the results of your experts for comparison purposes.
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