DislikedThere is no such thing as The Holy Grail of Trading..... . That said, there's maybe 5- 10% who more or less break even and belong to neither camp but the chances are if they're not making big profits they will eventually hit a bad spell and end up losing everything. There's been thousands of EAs trading with black and white rules, millions of lines written in forums over the last 10 years or more and you still think the Holy Grail is out there waiting to be found? .Ignored
Yes there is. And more than one.Â
I have one hanging around.ÂSimple black &white logic.
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Sadly, I'm too weak to implement it fully. And to follow. Emotions get in the way....
But testing it for couple of years. On paper nice results.
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All arguments above are pointless - people generally lose money. Who gets it - banks and skilled traders. Will anyone just hand out his grail??? Yeah sure.
What you don't know doesn't exist???
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Right now I'm getting annoyed of work etc and may get serious on my Grail. Will write EA for testing, though i know it's good. That's actually my setback - if i do test it and confirm my estimate of over 2500 pips a year - i have to kick my ass really hard for laziness. Or if someone steals it....
I'm working now on a separate account - but get distracted or scared... Then curse myself. It's that accurate. Â i put some improvements months ago.Â
Then the problems of setting up a new computer, couple more accounts. No VPS ofcourse 
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So i think I'll get it formal and tested, add few dollars in my account, quit job etc. But it's the big change that's something scary...work...life....so postponing it Stupid.... I could have made thousands.Â
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Eventually I'll stop wasting time.... Will post few reports when backtest....Go to a tropical island..... And you may never hear again of it 
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I bet many others discovered their grail and keep it secret. Anyone share his?? Nope.Â
Beware of robber banks (RB), bad advisors.