Must coins be shipped via register mail? Or can you ship coins using regular methods and pay the lower insurance fees? I've heard that the regular insurance rates do not cover coins and bullion, and that you must ship coins registered mail if you want insurance. I've also heard that you are not allowed to ship coins via priority mail at all. These reports make no sense to me as everyone on ebay is shipping coins priority mail with the regular form of insurance.
Who has experience with shipping coins and understands how the insurance works?