$11 ftp turbo, JJ isolation push...

[BG1124]

Early in a $11 turbo sng, 7 people left, blinds at 40/80. I was dealt JJ in MP1. All folds to me, I raise to 240. All folds to SB who calls for 200 then BB raises the rest of his stack for 270 more. I think for a second and then decide to reraise allin hoping SB will fold and isolate BB. My only read on these 2 is 3 hands earlier when BB reraised the SB allin with BB holding A8 and SB holding A3 both offsuit and they split the pot).
Any thoughts/comments on my play would be appreciated.

No Limit Holdem Tournament
Blinds: t40/t80
7 players
Converter

Stack sizes:
UTG: t3905
UTG+1: t2100
Hero: t1710
CO: t2255
Button: t1345
SB: t1675
BB: t510

Pre-flop: (7 players) Hero is MP1 with J[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/diamond.gif[/img]
2 folds, <font color="#cc0000">Hero raises to t240</font>, 2 folds, SB calls t200 <font color="aaaaaa">(pot was t360)</font>, <font color="#cc0000">BB raises all-in t510</font>, <font color="#cc0000">Hero raises all-in t1710</font>, <font color="#cc0000">SB calls all-in t1435</font>.
Uncalled bets: t35 returned to Hero.

Flop: 7[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/heart.gif[/img] (t2695, 0 player + 3 all-in - Main pot: t1530, Sidepot 1: t2330)


Turn: 5[img]/images/graemlins/spade.gif[/img] (t2695, 0 player + 3 all-in - Main pot: t1530, Sidepot 1: t2330)


River: Q[img]/images/graemlins/heart.gif[/img] (t2695, 0 player + 3 all-in - Main pot: t1530, Sidepot 1: t2330)


Results:
Final pot: t2695