My pleasure, always happy to share. Sounds like you got a good chunk of it figured out! The art is learning to manipulate the Bare Ground and Outlier setting sin different scenarios. One tip to help with cleanup is to use the Planar Elevation Snap. When trying to cut out items manually by polylines it can be difficult to snap directly to points as you trace around. It is easier if you have a surface that will let you click anywhere, but then you have to deal with creating and deleting repeatedly. The Planar Snap let’s you set the elevation of the area that you are working in and just click vertices without point snapping or creating surfaces.
Once you click Draw Polyline you can hover over the points and get a close elevation to enter. I like to use the toe of the pile of object that I am extracting as the points under the elevation you choose will darken and it makes it easy to see what to take out. I use this when filtering keeps destroying slopes or breaklines.
Working with surfaces in Civil is something you’ll pickup as you go. It just makes it allot easier than dealing with entities onscreen especially from several different files. You can quick-draw surfaces and contours just to see what is going on. All the drawings really contain then are your calc boundaries and analysis output like cut/fill color maps, volume calcs and etc.
Contour from TIN…
…brings up the same menu to draw contours as any other related command. I like these settings. You can draw Index Contours if you like here as well. Labels tab right next to it.
They have a good amount of videos on there site and mostly the same on YouTube, but you can also find other user’s tips. I personally like the Help menu as it is easy to search and find pretty much any command without waiting for a video to get there.