Ahhh ... I was missing the "Each * -2 -> Each" on the unloader. That's very clever! It allows for a reasonable overfill on loading to not cause an unloading loop.

I've made up some logic diagrams for increasingly complex stations.
Green / Red arrows are circuit cabling.
Black arrows are to show ...

So, how, in the brave new world of "Stops output expected inventory" do you do a multi-provider/multi-requester setup?
The station output no longer sends a negative inventory that you can use to block off one side by the "Anything < 0" method.
If the train is to unload then only the train ...

Yep. Combinators are a surefire way to inspire frustration that's for sure :)
I've done many combinator projects in the past, but the thing they all had in common was that phases and timing didn't play a part. They have all been contraptions that worked with total levels of stuff and then did other ...

So, with the simple decider counter with reset described above ... how would I store the value of the counter for use elsewhere in the factory upon receipt of the reset signal?
Imagine a loop belt that has 10 copper plate on it and a single coal (for the reset signal). How can I get 10 copper as a ...