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 (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is MP2 with Q/images/graemlins/spade.gif, A/images/graemlins/club.gif.
<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/images/graemlins/spade.gif, 3/images/graemlins/club.gif, A/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
MP1 checks, <font color="#CC3333">Hero bets</font>, MP1 calls.

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

River: (4.83 BB) J/images/graemlins/heart.gif <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...