SO when tiling behind the socket do you grout around the socket or
silicone it?

Working from the middle of the wall would you place your batten 1 tile
up off the worktop? Bearing in mind the its only covering half the wall
so would probably have to have either half tiles at the top of the
tiling section or at the bottom (Worktop)

When it comes to outward corners would you tile into the eye or out to
the eye??

col