I only have a single sub-type because the main Change Notice workflow was initiated over a year before I was asked to expand it into manufacturing as well. It wasn't necessary to create a new sub-type to get both of the workflows to work correctly so I didn't bother.
re: inherited from the default type to the subtype
Do you mean that if I set policy for the subtype that is different from the main type then the subtype ignores its specific setting and defers to the main type? Or does it just defer if I don't set something in the subtype?