1/2 AQs a little new to this limit thing...

[mythrilfox]

You check the flop on a dry board like this with two overcards and a backdoor flush draw? The chances of getting 2 free cards here seem immense to me. Plus, the way the flop played out (and this seems like it happens a good % of the time) I get a great price on those 2 small bets, since the others may be drawing with dominated hands such as AT and KQ.

I didn't want to raise the turn with 2 people still to act and 9T or QJ both distinct possibilities. (9T is also well within CO's hand range at this point given his flop play)