Creas problem

Another words now I understand to have good creas you have to run subd no less then +2. +1 do not make any good subd. Can it be fixed?

Sorry, it is not possible because the logic must run all the way from base mesh to sud mesh. When you collapse the subd mesh, the base mesh is lost. There is no perfect way to go backward to extract the base mesh, especially in cases of crease subd.