Set up for L-CC-L, or L-CC trains.
The idea is to reduce UPS by eliminating extra entities, like buffer chests, roboports, and bots.
I set this up by building it over the huge ore patches you find far from the starter area. All train stops get the same name. There are circuit network conditions to disable train stops which have trains currently loading, which I find helps with repathing.
I would call this experiment inconclusive because I did not observe an improvement in UPS. I figured I'd put it out there to start a conversation and ask - has anyone else experimented with similar setups or found mining setups that are definitely UPS-friendly?