[Augster]

Grunch.

So many hands....

Hand 1

Raise the turn. He may think you've already caught the flush and only call. If he 3-bets, call and fold with that river.

Hand 2

Bet the turn.

Hand 3

Either 3-bet the flop, or fold. Cold-calling two with the initial raiser behind you is too weak.

I call down when the Ace hits also.

Hand 4

You have to raise that turn. You have TPTK and a nut flush draw. If the donkbetter re-raises, and the other two trapped call 2, then I'd probably call down.