all flush draws are created equal. A flush draw without
anything extra going for it should probably be folded.
But many flush draws do have something extra. If it
has that little something extra, it might be worth
taking off a card and seeing if it improves on fourth
Sometimes, just a couple of big cards is enough extra
to turn a folding hand into a raising hand. For example,
a hand like (2? K?) Q? can be a strong start. Of course,
it needs to have the spades and the Kings and Queens
be live to have significant strength. And probably
not be against an exposed Ace.
I recently had this hand when the other players' upcards
included two Kings. There were no Queens, no Aces,
and no spades showing though. Here, my King was dead,
but my door card was very alive. Catching a Queen
after raising on third street would probably have
been enough to win the pot. That, combined with the
spades being completely alive, made it worth a raise
after another player had called the bring-in.
But it's probably only slightly best to raise. You
might want to just call the bring-in from middle position
with this drawing hand, hoping to entice more callers.
I think its close.