The internal closed loop [has been more successful] because there are internal controls. You can use RFID the way you want to. The issue when a manufacturer tags something that goes to a retailer is that you don't know what that retail environment is going to be, so there are issues around tag readability. You have to follow standards because someone else is going to be reading your product, whereas in your four walls you can do what you want and set your tags up the way you want.