Board Thread:Questions and Answers/@comment-173.71.27.18-20130207114635/@comment-6311763-20130208134242

173.71.27.18 wrote: OP here, thanks guys. Did some testing of my own as well and found that untagged items will treat the entire tube network downstream from a sorter as unpainted, and go to the closest available destination. Thanks for testing that out! For the record, dd you test it when the entire downstream network is painted (i.e. all destinations are painted)? What I'm wondering is that if one path is left unpainted if it would prefer that, and would only go through painted tubes if it had no choice. I wish I had remembered this last night so I could have just tested it myself!

In either case, for this kind of stuff, you'll likely want to use the Sorting Machine with one of its "with default route" options.