Hand from Quadruple Shootout on PS

[Frenchie]

Beginning of 3rd round.

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (6 handed) converter

MP (t1440)
CO (t1450)
Hero (t1550)
SB (t1480)
BB (t1360)
UTG (t1720)

Preflop: Hero is Button with 7[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/spade.gif[/img].
UTG calls t20, MP calls t20, CO calls t20, Hero calls t20, SB completes, BB checks.

Flop: (t120) J[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, <font color="#CC3333">BB bets t60</font>, UTG calls t60, <font color="#CC3333">MP raises to t180</font>, CO calls t180, Hero calls t180, SB folds, BB folds, UTG calls t120.

Turn: (t900) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
UTG checks, MP checks, <font color="#CC3333">CO bets t740</font>, Hero calls t740, UTG folds, MP folds.

River: (t2380) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
CO checks, Hero checks.

Final Pot: t2380

Results in white below: <font color="#FFFFFF">
CO has Jc Qs (flush, queen high).
Hero has 7s 6s (flush, jack high).
Outcome: CO wins t2380. </font>


Would a better line be to reraise on flop to indicate that I have a made flush ? I called the flop with the intent to raise/push on the turn on a non spade or 5[img]/images/graemlins/spade.gif[/img]. The large raise by CO kind of surprised me. On the river, how often do you think he folds to a push, representing the A[img]/images/graemlins/spade.gif[/img] ?