I want to install 2 new double sockets in my bedroom , I have determined that the wiring is on a ring, instead of running a spur from the existing double can I use 30 amp block connectors from each of the two cables,run cables to the new doubles and loop back to to the other 30 amp block connector whereby maintaining the ring and blanking off the original socket. And is it acceptable to run cables across top of skirting board and up the wall to the two new doubles. If this sounds ok is it also ok not to use the 30 amp connectors and just connect all four cables to the terminals in the existing double