Well. I don't have a very high opinion of mutual fund managers.
According to Larry Williams, during a time span of 1990-2002, almost no growth funds(out of 3000) were able to beat the DJIA.
I'm not saying that all of them are bad, but most of them produce poor mediocre results.
Motley fool notes that mutual fund managers typically return 9% per year.
Hedge fund industry returned like 5% last year(yeah it's blooming, double in assets under management in last 5 years to $1 trillion)
Actually, Van Tharp or O'Neil don't use those "complex" strategies.
Van Tharp uses expectancy, which is a mathematical formula to show how much you can expect to make with each $1 of risk.
He notes that there are like 6 factors in trading.
(1)Accuracy
(2)Profits of winning/losses of losing trades
(3)Capital Size
(4)Trading Frequency
and so on, I forget the other two darn.
CANSLIM is based on statistics of the best performing companies.
BTW, most professionals believe in crap called "Efficient Market Theory" and Random Walk Theory. Pretty much crap

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BTW, being more complex doesn't mean better.
Check out Long Term Capital Management. It was returning 40% per year, but when Russia defaulted on its soverign bonds in 1997 bam it collapses, lost a few billion $...
But then again, I don't know the guys you're talking to, they might be experts, but I'm talking generally.
BTW, this is not meant to be a inflammatory statement.. just my opinion vs yours with facts

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