[cheburashka]

I'm wide open to criticism from one of our regular posters on this, but...

For purposes of thinking about this quickly in the heat of the tournament ("... you have 15 seconds to act"), would it be correct to reason as follows:

You have 15 outs to hit a straight or flush, which is ~53% likely on turn+river (formula from HOH: outs X 4 minus outs over 8). Even with a small likelihood that someone will have a higher flush or will hit a full house, you should win this hand above 50% of the time regardless of how many callers you get. Therefore, the most positive EV bet would be the one that gets the most value in the pot (bet size X # of callers). I like Registrar's suggestion of pot-sized, but in my experience in micro (I'm definitely not good enough for the big boys), you would probably get at least two callers with a 2X pot bet here.

???