($4.40) Well Concealed Nut Flush On Turn, But What Line?

[FakeKramer]

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP1 (t3665)
MP2 (t1260)
MP3 (t695)
CO (t1565)
Hero (t3445)
SB (t1390)
BB (t795)
UTG (t2705)
UTG+1 (t3615)

Preflop: Hero is Button with J[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls t30, MP1 calls t30, <font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to t100</font>, <font color="#666666">2 folds</font>, UTG+1 calls t70, MP1 calls t70.

Flop: (t345) 6[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
UTG+1 checks, <font color="#CC3333">MP1 bets t90</font>, <font color="#CC3333">Hero raises to t250</font>, UTG+1 folds, MP1 calls t160.

Turn: (t845) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
MP1 checks, <font color="#CC3333">Hero....