15/30 Bother with this flop?

[bobbyi]

Button is 40/20/1.5 LAG type. Other guys are very passive, moderately loose. Is it worth check-raising here or just give it up?

Party Poker $15/$30 (6 players)

Pre-flop: (6 players) Hero is BB with 3[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img]
UTG folds, UTG+1 calls, CO calls, <font color="#cc0000">Button raises</font>, SB folds, Hero calls, UTG+1 calls, CO calls.

Flop: 9[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/spade.gif[/img] (8.67SB, 4 players)
Hero checks, UTG+1 checks, CO checks, <font color="#cc0000">Button bets</font>, Hero folds

[Subfallen]

Folding is bad getting 9:1 and calling is awful, so, yah, raise it up.

[Vlade Divac]

i like a ck raise obv
id love to hear what good players do hu when 3 bet or called and get raised on turn
i seem to call this down online live i fold alot

[mscags]

This is a pretty standard CR for me whether it is right or not I dont know

[wackjob]

I'd always go for a C/R here, this is nearly the best non-set board you could hope for.

[shootaa]

i cr, bet/fold, bet/fold - i doubt he folds an ace here [img]/images/graemlins/smile.gif[/img]

[The Funky Llama]

I would checkraise it. A 9.5 sb pot is surely worth fighting over and you will get the other bozos to make some incorrect folds.

[ILOVEPOKER929]

I think not checkraising this flop is a terrible mistake. Honestly.