I submitted my ERAS for PM&R, but afterwards decided I'd prefer to do categorical IM instead. I have 3 letters, but was wondering if I should upload a 4th letter from a well known PM&R physician. I know it is probably not recommended, but I wrote my personal statement explaining why, although my application seems geared towards PM&R, I want to do IM now. I think the PM&R letter is strong, but it just probably says that I'd make a good PM&R physician. What should I do?