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Interesting responses.

I think I'll throw in the next piece of the puzzle for kicks...

Turn: (4.00 BB) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">SB raises</font>, Hero ???

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It sounds like this guy is a regular at the site that you play. I think I would call down b/c you have the best hand often enough to make it close, and the added info you get by seeing his hand might gain you more bets/ cause you to lose fewer bets, in the future.