I also have a problem. I checked the debug logs when sending out multiple qtys of an item 1″ cubed item at .25 oz. Your system sends out the stats of 1 item then gets a package amount from USPS. Evidently your system takes the qty ordered and multiplies it against the package amounts returned by USPS. This process simply will not work, since we fit multiple items inside 1 package.
How are others using your system to get appropriate shipping amounts?
