Yes, i agree that it is pretty much an automatic fold if three or more of your suit are already dead. However, my biggest question is how to properly proceed if you start with (A ) (Q ) 5 and catch the 9 on fourth street. If you start to bet this too aggressively, it seems pretty obvious that you have a flush draw, because why else would you aggressively bet with a 5 9 on the board, unless you potentialy had 9 9 in the hole. Therefore if a third spade comes on your board, that could kill any potential action. Yet if you just check and call one bet (or get a free card), that doesn't see