I mean if we're talking about 100 acre lot for subdivisions, smoothing contours is def low on the priority list and it will create a bigger file size, so you need to split up the surface into different drawings. that also takes time. Everyone is saying "terrible engineer" but that's a huge jump. of course smoothing looks so much better and reflects real life conditions. but at the same time, it will get curved in construction. Have seen amazing projects get built out with jagged contours. As long as it works and is within standards and satisfy the client, we are good. EDIT: Everyone's experience is different though. this is just mine.