If my items all have different weights why does this change the number of packages that are actually being shipped? If someone is ordering 5 items that weigh 20 pounds each (total weight 100 pounds) and the MAXIMUM weight is set at 50 pounds then the module combines these 5 packages and makes them 2x50 pounds = 100 pounds. This then gets passed to FedEx, which of course returns the wrong shipping estimate. How can I fix this?