TPGK + FD on monotone board

[Captain Awesome]

Villain is 29/20/1.2. He looks kinda decent but he's very passive postflop.

PokerRoom No-Limit Hold'em, $4 BB (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($299.50)
BB ($241.10)
UTG ($194.00)
Button ($217.00)

Preflop: Hero is SB with J[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $9</font>, BB calls $7.

Flop: ($18) A[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $14</font>, BB calls $14.

Turn: ($46) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $33</font>, BB calls $33.

River: ($112) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $40</font>, plans on folding to a shove

[runningirl07]

I would bet a little more on the river here, he could easily have a worse ace or just a draw. It would be very easy for him to make a play on you here when you bet less than half pot on the river. You look too scared and you have a good hand.

[PwnSauce]

I might agree with your b/f river here cept id bet half pot. Might get some pps/weaker ace to call here. Folding to a shove because he's passive and if he's shoving he prolly has flush/boat and hoping you can't fold your ace.