Turn check with top trips

[scooby]

opponent is 29/9 according to pokertracker...the turn check was to induce a bluff on the river. Am I getting FPS, or this worth it once in a while?
Party Poker 15/30 Hold'em (10 handed) converter

Preflop: Hero is MP2 with Q[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">MP1 raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">5 folds</font>, MP1 calls.

Flop: (7.66 SB) 5[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
MP1 checks, <font color="#CC3333">Hero bets</font>, MP1 calls.

Turn: (4.83 BB) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
MP1 checks, Hero checks.

River: (4.83 BB) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP1 bets</font>, <font color="#CC3333">Hero raises[/color}Final Pot: 8.83 BB

[Levi King]

I don't like it. You'd hate for him to get a free look at his draw because of the check and I think the second A makes it actually more likely that he'll call you down with a PP. He might even check raise you on the turn...