well, everyone likes there hand so if you bet out like 1,000 there gonna go all-in and your gonna call anyway. You got 9 outs to the flush (hopefully) and 3 more for a pair of aces (these are prob dead) to triple up. I don't think there is much you can do to get away with this, especially with two people all-in. As for your play, I like leading the flop and then making an all-in reraise, then you put them to the test rather then the other way around.