KK 3-bet preflop, flopping overpair vs TAGgy player 210 BB deep

[fabadam]

One of the things that I find hardest in NL is 3-betting (and handling 3-bets) pre-flop. The pot is huge from the get-go, and on top of that, you have little idea where you are a lot of the time.

In this hand, I had been pummeling the table, playing 26/18/5.5, stacking two donkies on monster flops (for me).
Villain is the most dangerous other player at the table, playing 19/19/4.5 over just 40 or so hands. He seemed to be a bit of the raise or fold type, but that's just a hunch really.

(Converter messed up, so I'm fixing by hand)

PokerStars No-Limit Hold'em, $0.50 BB (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

saw flop|<font color="#C00000">saw showdown</font>

BB ($48.10)
UTG ($104.70)
Button ($50.90)
Hero ($149.75)

Preflop: Hero is SB with K[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">UTG raises to $2</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $6.5</font>, BB folds, UTG calls $4.50.

Flop: 4[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/club.gif[/img]

<font color="#CC3333">Hero bets $9</font>, <font color="#CC3333">UTG raises to $27</font>, Hero ???


I'm happy to here more suggestions with respect to SPR, but for me, this was the difficult decision point.

Edit: I'm putting this on the forum just before going to sleep, so it'll be a while before I look at this again.