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Have these guys released robust systems in the past?
For $50 I doubt it’s robust. Usually these will be a single market system or on a select handful of symbols $50 might be worth a few new idea’s, but probably wouldn’t expect a working system.
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How does one get an idea on whether or not they’ve been over-optimized?
Once you’ve worked through the second part of the course here you’ll then get a very good idea on these systems and their makeup. That’s a key benefit of this course: smell sh*t a mile away…