Expect to make clip board maps religiously, you have no other way to see what you are doing. In October 2016 I made 100 so I could see where I was cutting the land mass by hand. I averaged 50 a month tweaking things. I used a map copy with the sector grid to create x,y points that I then followed in the terrain editor to cut 1mile dia. x -200ft deep dots. Then I connected the dots. Avoid having to do that, use a third party gray scale app.
"If" I ever do this again, I'm getting some gray scale app to do the proto topo work in first, then import that to the terrain editor. I felt like a blind man trying to paint a house by braille.
