Apologies if incorrect. I took my information from Non League Matters results and tables pages, which states that both the "Step 8" Surrey leagues promote into the Surrey Elite.@Pawn Of Prophecy - I do not think that is right. The leagues currently below the Surrey Elite cannot declare themselves as feeder leagues, that is up to the Surrey County FA. Even then the FA has to approve it
As for the Doncaster and Sheffield news, I do not know enough about past movement in the area to know if the assertion that the top Division of the Doncaster League is below all three divisions of the Sheffield League is correct. When clubs move between the leagues, how are they really compared?
There has been promotion and relegation between the two in recent times. West End Village went up and then went back down. Chessington KC came up and have stayed up.