As,Ks, flopped nut flush draw heads up OOP on baby flop

[otter]

Full Tilt Poker, $1/$2 NL Hold'em Cash Game, 8 Players
LeggoPoker Hand History Converter

CO: $153
BTN: $139.10
SB: $296.10
BB: $195
UTG: $69
Hero (UTG+1): $213.10
MP1: $206.70
MP2: $43

Pre-Flop: K[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] dealt to Hero (UTG+1)
UTG folds, Hero raises to $7, MP1 calls $7, 5 folds


Villian is 15/10/8 and I only have 120 hands recorded with him. He has never just cold called a pre flop raise. I figure he has a mid pair and a very small chance he has A's, K's or Q's. The game is tight and perhaps he doesn't want to lose players. Most likely I think he has a mid pair though

Flop: ($17) 2[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero bets $12, MP1 raises to $30,

Hero?