I have discovered one thing. There is a firm which does a lot of 'claims' processing for different insurance companies. This firm, called Disability RMS, reads like a who's who of form UNUM executives. Their SOLE purpose is to look for any reason to delay, and if possible, deny claims! I advise ALL professionals to avoid like the plague ANY insurer which uses Disability RMS to adjudicate and process their claims. (BTW... PRINCIPAL FINANCIAL uses Disability RMS. Real bad experience there.)
My take... some years ago UNUM was vilified in the press and in court for their over-aggressive denial of disability claims. Since they got such a black eye, they decided to share it with the rest of the industry by outsourcing their Disability RMS unit!