Flop inside str8 draw, semibluff good?

[Instatilt]

Villain is a winning TAG, datamined thou so no good read.

Party Poker No-Limit Hold'em, $2 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($178)
MP ($200)
CO ($226.20)
Button ($231.98)
Hero ($539.10)
BB ($27.47)

Preflop: Hero is SB with 5[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises to $7</font>, <font color="#666666">3 folds</font>, Hero calls $6, <font color="#666666">1 fold</font>.

Flop: ($16) 8[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $12</font>, <font color="#CC3333">Hero raises to $36</font>, UTG calls $24.

Turn: ($88) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $52</font>, UTG calls $52.

River: ($192) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $109</font>, UTG folds.

Final Pot: $30