Standard 4-bet AI with AQ? ($12)

[Nakamura]

Villain is an unknown here. Is this just a standard push here, since our initial raise appears like blind steal?

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FullTilt Poker Game 16827222962 / Tournament
Table 1 - 15:42:17 ET - 2009/12/15
Blinds : 25/50
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9 players
[SB] StruckTimbo (1565)
[BB] sbx2117 (1640)
[1] Ip4fo (1455)
[2] sugarcitygirl (1510)
[3] brandonclark (1535)
[4] sexygogo (1400)
[5] KAMENOZROUT (1440)
[6] badMistage (1500)
[But] Hero (1455)

Hero Q A Initial Pot: 75

Ip4fo folds
sugarcitygirl folds
brandonclark folds
sexygogo folds
KAMENOZROUT folds
badMistage folds
Hero raises to 150
StruckTimbo folds
sbx2117 raises to 475
Hero ??

[baudib]

My default is to fold and shove over only with a really tight range at these blind levels. In SnGs you need a better read that he's 3-bet bluffing with AJ but I've won some big pots in MTTs shoving over with worse broadways and outracing 44.