There are times when you need to graphically show something for code reasons for permitting, but the actual dimension might be larger. I'm not sure the point in not allowing us to fake the dimension. It seems like autodesk is trying to protect us from doing something thats "not best practice" in revit and I think they should leave that up to us. It just seems like an unnecessary limitation that becomes annoying the once in a blue moon that I could really use it.