[Surfbullet]

BBs line had me a bit confused at first, but upon reflection I think he's pretty solidly on AQ/JJ/TT/99 or some-such.

My first reaction to COs play was slowplayed QQ - but 2 things dissuade me from that idea.
-the pot is huge, so slowplaying is less likely
-the CO has no way to know that our hero will bet the turn. QQ would hate to miss 3 bets by having the turn check through, and IMO would bet this turn the majority of the time.

I find it unlikely that CO would iso-raise with 33 or 44 preflop, so that's out. KQ would likely raise the flop. So CO looks to be AK or KJ/KT etc that hit on the turn also.

BB going into calldown mode makes me confident hero is ahead on the turn. UTG calling along the whole way reeks of a flush draw - I 3bet on the turn for value and bet again on a non-spade river.

As it stands I raise the river because a busted flush is not calling, and anyone with a Q or K is calling (or reraising). I figure hero to be ahead here a significant amount of the time, even if reraised.

Surf