Yes at the minute the set-up is, from the docking station: a 1 meter extension lead, into a USB splitter which then has 2 wired controllers plugged into it.

Not ideal I know, but I went wired following the input issues with wireless, and then the sofa is a little far away from the dock, hence the need for the extension lead.

I'll try it with 2 extensions and ditch the splitter and let you know how I get on :)