40-80 Commerce Line - Way Ahead Heads Up

[Gap23Razor]

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called heads up from the big blind with JJ. Flop is Js-Ks-8x. I check, he bets, I call. Turn is case J. You bet or check?



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is there a bonus for quads? and what are the rules for it? do you only win the bonus if the and is involved in a showdown? if yes to all the above, just check/call...