We use it to draw all lines.
Then, toward the end of processing a survey, I might select all fence and utility lines, explode them to 3D polylines, convert the result to 2D polylines, and turn on linetype generation. That generally works OK, since we typically do not consider fence or utility lines to be breaklines.
But I also have the Sincpac-C3D, with its
Extract2d command, which can extract flattened polylines from Survey Figures. It can then place the flattened linework on a different layer, or move the Survey Figure to a different layer and leave the flattened linework in its place. (Which reminds me... I still need to add an option to that command to automatically turn on Linetype Generation on the flattened linework...)