Hi ! Very soon, grass (woodland scenics turf) will grow on my N scake layout ... but before it starts to grow I'd like tu "unflatten" the terrain ... wich is way to horizontal I read about using ground goop in some Kalmbach books ... I looked at the receipe and wondered if I could still find all theses ingredients in 2003 What's todays trend for this kind of job ? All I want is some kind of mixture that adheres well to most surfaces, sturdy enough so I can shape it as I want (before it dries) and very strong when dry. Any tips/idea ?