What is the оptimal location of the stations?

[asap]

Dear colleagues, hello.
What do think about this planned location of the stations? 
https://www.google.com/maps/d/viewer?mid...AQKEBY3KB4
What's the best way to cover a largest area with highest quality? 
WBR,asap.

[kevinmcc]

This is a good resource for showing coverage.

https://www.lightningmaps.org/extra/coverage?lang=en

I would say Station 4 or Station 7 would be the best next station.

Station 7 fills in gap to west and Station 4 push coverage in to area not covered.