Someone posted an SDA list of serial numbers and I can't seem to find it anymore. I had printed it off and have lost it. I checked the serial numbers on my SDA 2?s and if the list was correct I would have the 2As not the 2Bs. I believe the 2B's serial numbers started in the 14000s and my serial numbers are in the 12000s. Can anyone help with the serial number issue?