24+2 KO - AA, hows your line?

[LRG]

Full Tilt No-Limit Hold'em Tournament, 150/300 Blinds 25 Ante (9 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

BB (t10531)
UTG (t10792)
UTG+1 (t20454)
MP1 (t12740)
MP2 (t2305)
MP3 (t17623)
Hero (CO) (t25950)
Button (t4595)
SB (t18725)

Hero's M: 38.44

Preflop: Hero is CO with A, A
1 fold, UTG+1 bets t900, 3 folds, Hero raises to t2625, 3 folds, UTG+1 calls t1725

Flop: (t5925) A, 3, 6 (2 players)
UTG+1 checks, Hero bets t2320, UTG+1 raises to t5700, Hero raises to t23300 (All-In), 1 fold

Total pot: t17325

No History vs. Villain, Flatcall Flop und ihn bluffen lassen erscheint mir im Nachhinein besser?!
Sehe da einfach oft AKs und der Pot ist so schon ca. 1,5avg stack.
Zu scared?