Continue to extract chips or just move in and take it down?

[bowlman628]

PokerStars No-Limit Hold'em, $0.05 BB (8 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP2 ($4.39)
CO ($10.27)
Button ($4.88)
Hero ($2.91)
BB ($6.59)
UTG ($9.63)
UTG+1 ($9.93)
MP1 ($2.05)

Preflop: Hero is SB with K[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">MP2 raises to $0.15</font>, <font color="#666666">1 fold</font>, Button calls $0.15, Hero calls $0.13, <font color="#666666">1 fold</font>.

Flop: ($0.50) Q[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, <font color="#CC3333">MP2 bets $0.15</font>, Button folds, <font color="#CC3333">Hero raises to $0.5</font>, MP2 calls $0.35.

Turn: ($1.50) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $0.35</font>, MP2 calls $0.35.

River: ($2.20) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $1.91 (All-In)</font>, MP2 calls $1.91.

Final Pot: $6.02

I know with a .75 bet on the turn i could have prob taken it down however with the PT has put this player with a VP$IP of 65. so i didnt put him on a higher pocket pair. however if he had the 9 i get felted either way... so my question is at what point do u just bet big to push him off the hand?