T i m wrote:

Andy Burns wrote:

so, adding a total of four new sockets?

Sorry (my bad),

I did wonder about the "pair of doubles"

just two (one double off an existing double).

you'd want an FCU between the
ring and the first new socket.

But the same would apply I'm guessing.
One single socket, or one double socket can connect direct to an
existing point on the ring, without an FCU.