Hi.
Civil 3d should have system vars or parameters ( maybe in ambient settings) to specify the way we want explode that entity or when we export to DWG command.
For example, I generally explode a Feature Line ( or a copy) to get a 3d pol but I would like more segments in the 3d pol, I mean more detail.
I know that we could do this in the same FL before exploding it with the command: intermediate break grade points by increment but I only want that in the 3d polyline without affecting the FL.