[Buzz]

Gooper - I think you have to figure that someone is going to make low here. If so, Hero has to win for high twice as often as Hero loses to want to initiate fresh money into the pot.

The way the betting has gone on the turn, it looks as though at least one of the opponents, and maybe both of them have the same ace-high straight as Hero.

Let's consider raising or not on the river.

If both opponents also have the ace-high straight, Hero cannot gain by raising, regardless of low.

If either opponent also has the ace-high straight, and if one of them also has low, Hero can only lose by raising.

Thus raising on the river is purely stupid.

Buzz