Pumping Non Nut Flush draws - Out of Postion

[22pajo]

Limit: $0.50/$1
9 players

I have been involved in quite a few of these types of hands recently and never really know if my line is good.

No reads on villain but i'm not so much concerned about his action. I'm more concerned about finding out if its right to raise non nut flush draws out of position or what is the best strategy?

Pre-flop: (9 players) Hero is SB with Q[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img]
4 folds, MP3 calls, CO folds, Button calls, Hero calls, BB checks.

Flop: K[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/heart.gif[/img] (4SB, 4 players)
Hero checks, <font color="#cc0000">BB bets</font>, MP3 calls, Button folds, <font color="#cc0000">Hero raises</font>, BB calls, MP3 calls.

Turn: 7[img]/images/graemlins/diamond.gif[/img] (5BB, 3 players)
Hero checks, <font color="#cc0000">BB bets</font>, MP3 folds, Hero calls.

River: Q[img]/images/graemlins/club.gif[/img] (7BB, 2 players)
Hero checks, <font color="#cc0000">BB bets</font>, Hero folds.