shortstack check raise all-in, should i have just pushed flop? ($15)

this was a 6-handed sng, so top two pay.


PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (4 handed) converter

Hero (t605)
Button (t1325)
SB (t4210)
BB (t2860)

Preflop: Hero is UTG with 7[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">Hero raises to t90</font>, Button calls t90, SB calls t75, BB calls t60.

Flop: (t360) A[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Hero checks, <font color="#CC3333">Button bets t120</font>, SB calls t120, BB calls t120, <font color="#CC3333">Hero raises to t515</font>, Button calls t395, SB calls t395, BB calls t395.

Turn: (t2420) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Button checks.

River: (t2420) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, Button checks.

Final Pot: t2420