[rockin]

The problem with the overbet push is that it looks like the EXACT hand you are playing. Your opponent can now make the proper play based upon his read on your flush draw, he can make the proper play most of the time. He knows only a very deceptive (and sometimes foolish) player would push the flush at this point, so you are only going to be called by hands that are ahead of your draw (i.e. 2 pair, set). You certainly may be able to get an A to lay down, but not if they have a decent heart.