Size Does Matter

[ntg816]

I am not convinced that he does have the big draw with 6d7d, but I hadn't seen it mentioned yet as a possibility. It is very unlikely that the "solid, competent player" in the SB called with 67o.

Of course, if you were "sure" that he had the big draw, then calling would be acceptable and acting according to the turn. But there are a lot of hands here that would make the same move here, and you would be way ahead of.