Thank you very much for your precise answer.
More I am using EA Studio and more I am thinking of putting less effort into Filtering ea with robustness tests.
Because we can never be sure the EA’s will perform in the future no matter what robustness tests we are doing.
I may just want to generate a bunch of EAs (3k+) then put them on Demo and transfer the top performer to live account.
I’ve do that in the past but with only 100 EA’s so with a much larger portfolio I think I have much larger chance to have profitable strategies.