i personally dislike using the corridor for anything other than a road model. I find the linework that is part of the corridor or extracted from the corridor is not good enough for my legal plans or even my pretty plans. i typically advise people to freeze the corridor object layer and build their road linework the old fashioned way.
code set styles are neat for concept work, quick rendering and hatching, but the tesselation and 3d properties of the elements are just cruddy for plats. etc.