Bet top set? QQ on moderately coordinated board

I'm known for c-betting at this table. Its 55 minutes into a Party 10+1 freezeout. I thought if I didn't bet this flop it would arouse suspicion and also give someone a free card to possibly hit their flush (or outside possibility of a straight). What do you think of the bet?

Party Poker No-Limit Hold'em Tourney, Big Blind is t50 (10 handed) FTR converter on zerodivide.cx

MP3 (t2490)
CO (t3120)
Button (t1460)
SB (t655)
BB (t1182)
UTG (t5020)
UTG+1 (t345)
Hero (t2438)
MP1 (t640)
MP2 (t882)

Preflop: Hero is UTG+2 with Q[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to t150</font>, <font color="#666666">3 folds</font>, CO calls t150, <font color="#666666">2 folds</font>, BB calls t100.

Flop: (t475) 7[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets t300</font>...