I totally agree, terrain following does not exist at all. I can try to lay a track and it has a distinct vertical bow in the middle, meaning the track I am laying has a pronounced dip in the middle of the length, with both ends slightly above ground level. The track I am trying to lay is not vertically straight from the beginning to end. If it just followed the terrain it would be fine as there is only mild undulations. Have a pic, but cannot upload it here if support would like a look. It makes laying lines all but impossible.