In my experience, quite often when draining a resource with a storehouse relatively nearby, the gatherers still elect to go to a different drop point, that is closer by line-of-flight but ends up being longer because of the route actually needed to get there (e.g. when a gate is locked, a different gate has to be used). It would be neat if it took into account actual-path in addition to closest drop-off location.
If I am totally barking up the wrong tree or there is already a thread for it, I do apologize ahead of time. Thank you.
/E.