The 2014 Vario box is bigger I've been told, GS or GSA boxes? didn't even know they were different! different mounts? Does the later box just use the black tray that fits under the aluminium carrier? if so I can cut a stainless plate to bolt this to my 2012 rack. I'm new to this GS lark and coming from race bikes am finding brilliant and can't understand why I left it so long! I just want the Vario box I can fit a helmet into to match the side boxes. Thanks for your patients guys!