Overpair vs overbet

[cheer]

vil: 51/18/2.16 over 144

didn't bet flop bc that flop is not much of his range and I want him to catch up a bit to be able to call.

Full Tilt No-Limit Hold'em, $4 BB (5 handed) Full Tilt Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

SB ($402)
Hero ($610.10)
UTG ($1095.50)
MP ($566.20)
Button ($336.70)

Preflop: Hero is BB with A[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img]. SB posts a blind of $4.
<font color="#CC3333">Hero raises to $12</font>, <font color="#666666">2 folds</font>, Button calls $12, <font color="#666666">1 fold</font>.

Flop: ($28) 8[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.

Turn: ($28) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $20</font>, <font color="#CC3333">Button raises to $40</font>, Hero calls $20.

River: ($108) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $284.7 (All-In)</font>,