[nutsflopper]

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If he 4-bets, you can make a tight fold (assuming that stacks are deeper).

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This is a big reason why I would just call, it's a lot easier to play. Also, I think his range for cring this turn is a lot hands that beat us or weakish made hands that were trying to get to showdown on the flop but now bluffing the Jack (although he's unlikely to continue a bluff w/ this spread limit garbage ag;lkh)