[Nightwish]

Hand 1: I would have bet the turn and called a check-raise. But given your turn check, were you going to a call a non-diamond, non-T river?

Hand 2: I don't think this will work often enough to be profitable. He will call you on the turn, which pretty much forces you to bet the river. I would probably bet-fold the turn instead of this, which looks too much like spewage to me.

Hand 3: Again, I don't think this will work often enough, especially against a savvy opponent. You cannot credibly represent a flush because a flush draw (especially an A high one, since that's what he'd have to put you on because of your preflop 3-bet) would have bet the turn.