Has anyone had any luck in getting usps_int to return Commercial Base rates? I have tried what the USPS Web Tools manual instructs, but I get a parsing error no matter what I've tried.

Secondly, has anyone integrated Sunshop with a shipping program such as Endicia or EasyPost? If so, can you describe how it works? I know that there is a ShipStation module, but I am not interested in using them at this time, as I am already signed up with Endicia and have already paid their yearly fees.