Just a line check here. Wanted to know how my 3 bet sizing was. Too small, or possibly shove? After the cutoff flatted, I figured him to have a quite narrow range, maybe evern flatting aces, but more like A-K or A-Q. I would obviously shove any non ace flop here, but as played I check folded. Any thoughts here? Is this the right frame of mind?

Poker Stars $1.00+$0.10 No Limit Hold'em Tournament - t600/t1200 Blinds + t150 - 9 players
The Official 2+2 Hand Converter Powered By DeucesCracked.com

MP2: t19975 M = 6.34
CO: t20060 M = 6.37
BTN: t58065 M = 18.43
SB: t25839 M = 8.20
BB: t23540 M = 7.47
UTG: t14400 M = 4.57
UTG+1: t22615 M = 7.18
Hero (UTG+2): t18645 M = 5.92
MP1: t16585 M = 5.27

Pre Flop: (t3150) Hero is UTG+2 with K K
1 fold, UTG+1 raises to t2400, Hero raises to t6955, 2 folds, CO calls t6955, 3 folds, UTG+1 calls t4555

Flop: (t24015) 3 A 9 (3 players)
UTG+1 checks, Hero checks, CO bets t4800, UTG+1 folds, Hero folds

3-bet size is fine. flop is gross, but I think you have to check/get it in, so long as UTG+1 folds. if it checks through just get it in on the turn.

i just shove pre, calling ranges are way of so i think i get more value by shoving pre.

I like shoving pre also, your 3 bet raise is alot scarier than a shove....i think shove for value

as played got to fold on the flop with like 3 other hands and an Ace on board

+1