Since matter is neither created or destroyed, does curving Flexxbed cause it to be thinner on one side from the other, causing a negative superelevation condition? I've used cork and homasote, but this looks almost too good to be true. Bob T
No,
Think of it as sponge material. It isn't quite but for an average curve the material will become denser on the inside but the height holds. If it does change I haven't noticed it.
Springfield PA