I currently have the KEF eggs set-up as a 5.1 system, but I will be setting up a dedicated room next year and I am thinking of expanding to 6.1 as my amp has the facility. However I have had different advice of how to set-up the 6.1 and whether to use 1 or 2 additional speaker(s) for the centre rear. Has anyone got a definate answer to this? Will there be enough information for 2 mid-rear speakers? My room won't be that big (11ft by 8ft) plus there will be a door to the rear left of the room. Any thoughts anyone?