How would you wire this passing loop oval layout?

John B. Recently posted a track plan to the ModelRailwayEngineer community asking for wiring suggestions.

The plan for his OO gauge layout is below. John wanted suggestions on where to connect a single DC controller.

John's planned OO gauge track plan

The consensus from the community of where to connect power feeds was between the points at the bottom of the track, as below.

John's proposed OO gauge track plan wth suggestions of where to connect the power.

John’s proposed OO gauge track plan with member suggestions of where to connect the power.

Connecting the feed at the point marked in Blue will allow power to flow around the layout.

More of a debate occurred on if, and where, isolating fish plates should be used.

Some suggested on the oval marked Red, others suggested between the points, using isolated joiners on the inner oval to prevent accidental shorts was another suggestion.

How would you wire this? Would you use isolating fish plates and if so where. Add your thoughts in a comment below.

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