Now that I calculate it, even a min raise on the turn in #2 pot comits me if he pushes...which might not be bad since he's comitted to call with a combo draw. Still not sure what is optimal though...

In 1 and 3 I think it's worth betting/raising at least one of them, maybe both, purely to see where I'm at...even though I hate doing that, it seems like the best move against this guy.