Your description of the guy as a pretty big fish makes me think that he's more likely to check a set than bet it with two players behind
nah not this guy, hard to describe him, he plays strange, not so much fishy, dunno how to describe him better. I'm just saying what I think he'd do with certain hands.
btw, only one player behind him. he is straddle, sb and me in bb both checked.
I don't think he's a fish either. Sometimes he can be unorthodox, but seems to know what he's doing generally.