[gharp]

I've gone back and forth on this one but I think you should probably bet against straightforward players. The flop has enough low cards that they could be peeling with overcards that they'll fold to a turn bet. They could also have a flush draw, which will pay you a bet now but not on the river.

So I think there's just enough chance that you're still ahead that you should bet here. But I think it's pretty close. If you think they're tricky enough to raise with an 8, 5 or FD then you should check behind.