I am trying to decide whether to write a new PS for my prelim/TY application. This question has come up before and the consensus seems to lean toward just adding a little to the end of your PS, but my PS is really specific to the specialty. Wouldn't that come off as irritating to read for someone in an entirely different field? At the same time, I really dont know what I would write to fill up a few paragraphs about a prelim given that my research, activities, etc are all specialty oriented. What do you think?