Ask price too high in strategy tester - page 2

[allvpsmt5]

I tested my algo trading software in strategy tester it gives me excellent result, my calculation is based on ask and bid price only, but when I load it in my real account it can't perform 10% even like testing result, there is big difference in ask and bid values in tester and live market, what to do I can't understand

[William Roeder]

allvpsmt5 #: there is big difference in ask and bid values in tester and live market, what to do I can't understand

You set the spread before you start the test. Set it to your broker's average.