Planning an N Scale E shaped ISL - 9ft 6 in X 9ft 6in

[Dottney]

I have an area on my layout that is almost identical to area #2, just with the run round on the other side of the middle track. The run around is useful but if you only do push moves into the area its unnecessary. If there's a run around out on the main or drill track before entering the area the run around is not needed either.
I'm wondering if a run around on the drill or main is more prototypical. Have to do some digging on the world wild web!
Nice plan overall. I'm probably going to use some of your ideas on an HO switching layout I'm doing.
Dave