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I bet, opponent raises. Now I know the default play is to lay it down, but I cant help to think that he thinks that I think he has a queen and is trying to re-represent it with this card. Is it worth a few more big bets to see a showdown here?

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I don't know your history or the texture of this game, but that seems like a very difficult read to make here. Has he made bluff-rebluffs like this before? Have you folded a similar situation before? He may be semibluffing with Ax clubs, does he like to semibluff the turn alot? What do you do if an ace or club hits the river? Is there any non-8 river you can bet?

It may be worth the 2 more bets for showdown, but I would not commit to it with only the pokertracker X/Y/Z stats given in your original post. There's no law that loose-agg players can't hit trips (or a full house), and you've shown major strength on every street only to run into more resistance.

Good luck,
IronFly