[grizy]

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very little 'mixing it up' is nescessary to beat idiots.

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I don't think anyone is disputing this.

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I had a very long discussion with a friend about this in No Limit hold'em a couple years ago. I am a very game theory oriented player (degrees: comp sci, finance, economics, and yes, polic sci, I spent 7 years in college... hey, it was free) and he relied heavily on instinct.

What is comes down to is this... against idiots who aren't paying attention to what you're doing or are not changing his play whatsoever... then in turn you don't have to mix up your play since the mixing up would not yield you additional EV. In these cases, and this is true more often in low stakes than high, you are in fact better off sticking with the standard line. (This is actually mentioned in Super System)

However, the higher stakes you go, the more you NEED to randomize your game decisions. In fact, even in 100plo, there are players you need to mix up against or you're find yourself losing money to these players over the long run... even though you might be making money on these tables.