[Kwaz]

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I think the guaranteed information value of seeing his hand, ranks checking behind above all other options.

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With the superfish in the pot, this statement simply cannot be true. Besides Kwaz, I know youre a good enough player to understand that if the UTG folds to this river bet, that means he check/raised the turn with BS so you'll get the information you covet one way or another.

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When this villian checks the river, he's check/folding or check/raising. You are losing value against him ALWAYS.
You have to make that value up from superfish ALWAYS.
I'm not going to dish up some incredibley speculative* figures that have only been invented to substantiate my argument (which I could easily do). I'll let you do that in your own time and make yourself feel better about your decision (just as I have done).

I quite obviously value the informational difference [between knowing his hand is BS and actually knowing his hand] a lot more. Maybe to a fault..

* Considering, so called 'superfish' is one orbit old.