20-40 Borgata -- Do you fold a flush

[afish]

Here's a hand from a loose passive 20-40 game at the Borgata on Saturday.

I am in middle position with 97d. Two limpers, I limp, two limpers behind me, SB calls, BB checks. Seven see the flop.

Flop is 10d 5d 4d. Checked to me, I bet, the button calls and the SB calls. All others fold.

Turn is 3d. SB checks, I bet, button raises, SB thinks long, mutters about needing the 6d, and calls. I call.

River is a blank. SB checks, I check, button bets, SB folds, I call.

Results in white below. Comments welcome.

<font color="white">Button turns over Qc10c and MHIG. SB said he had the 2d and was looking for the 6d to make a straight flush (which would have been sweet for me). </font>