in the screen shot my robots are still delivering because I can't "net" the chests content with the request
so why or what i'm trying to do: i'm playing around with "just in time" delivery from a central train warehouse where my robots are operating. on the "delivery" train stations i have placed requester chest filled by demand out of my factory/outposts and the robots are bravely filling the chests. if there is no train or the train is full and just not departing, the items in the chest are not netted with the requested amount from the "request" network. so this leads to an overdelivery which i can't accept in my "just in time" and minimal storage base to reduce my warehouse value
 only setup i could figure out is with 2 chests, one receiving based on circuit request, an inserter inbetween moving items to the next chest where i really read the content (can be a normal chest then). of course workable but not nice at all (ok, complained on really high level and perhaps my fault because i don't see the "solution"
 only setup i could figure out is with 2 chests, one receiving based on circuit request, an inserter inbetween moving items to the next chest where i really read the content (can be a normal chest then). of course workable but not nice at all (ok, complained on really high level and perhaps my fault because i don't see the "solution"   ).
 ). would really love to see a better setup for my chests or the possibilty to read contents and set requests on 1 single chest if this is technically possible. in each case, great work from the whole DEV-Team that absorbs on a lot of evenings after work my time in optimizing logistics

EDIT: i have to correct slightly, so the mentioned work around is not really possible. as soon the target chest is clogging up and the demand is still high enough, the problem starts again. so i think the only real workaround is then with deciders and combinators but then a "simple" task of a Requster Chest becomes kind of overdesigned



 so the whole need of it gets kind of obsolete besides the smaller layout but this is ok with me and not worth the effort for this sole use of it.
 so the whole need of it gets kind of obsolete besides the smaller layout but this is ok with me and not worth the effort for this sole use of it. 

