[ QUOTE ]
Opponent has taggish stats (looser tag 27/9/1 I think), that's all I know.

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

Hero ($1553.10)
Button ($425.20)
SB ($455.90)
BB ($605)
UTG ($400)
MP ($296.13)

Preflop: Hero is CO with 9[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/club.gif[/img]. SB posts a blind of $2.
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $15</font>, <font color="#666666">2 folds</font>, BB calls $11.

Flop: ($32) K[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $8</font>, Hero calls $8.

Turn: ($48) Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $20</font>, <font color="#CC3333">Hero raises to $40</font>, BB calls $20.

River: ($128) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

Final Pot: $128

[/ QUOTE ]

I never minraise so I don't really have too much of a clue when its a good time to do so but I kinda like your line.

The way I see it his underbet lead on the flop looks most like a diamond draw. I usually raise there because I think theres a good chance you have the best hand at that point, but I see the merit in calling to control the size of the pot.

You minraise on the turn to fold out air, to charge the draws a little more, and to possibly get to a cheaper showdown on the river.

My question is how much if any do you call for if villain bets out on that river? edit- probably not much at all.