[Tryptamean]

I posted a hand like this not too long ago.

In this case (and most cases with LP players still in a hand on the river) I would raise the river. Since there are only two players left, you are hoping for two overcalls vs one call from the maniac.

Raise River: they might call two cold, maniac will call often, and the LPs could have just been chasing the whole way with nothing.

FWIW: on my hand posted, I got the exact same results, one caller on the river, vs most likely only one call if I had raised...

PS, I might be inclined to raise turn here, since you only have a Q high flush, and the ace or king will probably pay two to draw... but I tend to play my made hands pretty fast