I'm trying to figure out how to set up an ammunition supply train that visits various outpost stops to deliver >= X amount of ammo. Then the train should leave back to the supply stop, wait until full or after some time, then only leave to an outpost if it needs ammo or otherwise just sits at the supply base.

1. Do circuit networks need me to connect the green or red wires ALL THE WAY back to every other station that requires a signal?
2. The option on the stop that says deliver circuit result to the train, does that mean the train docked to it and only it?
3. I did manage to get it to wait at this outpost station for unloading once, but unsure of which combination of conditions caused it. Then when fiddling with them it no longer does so (reverts to initial behavior below).
4. The current behavior is that the train will come to the outpost but unloads exactly 1 ammo before it goes back to the supply base.
5. The 600 ammo limit is placeholder for experimentation, 6 boxes/slots is probably excessive.

I can see why people don't really like learning circuits and other games vastly simplify the signaling.