For those serious operator types out there, do you give any consideration to the origin/destination of your interchange traffic or the selection of cars for a specific load? Do you assign a specific destination to all loads leaving your railroad via interchange such as "Yakima, WA via BNSF" or "Akron, Ohio via B&O"? What about traffic coming to your railroad through interchange? Did that load of oranges just come from "somewhere else" or did it originate on the Southern Pacific in Merced, California? Along those lines, do you give any thought to car selection on your road? Will you ship a load of canned goods in any old boxcar, or do you pick an RBL that's been designated for food service? If the load is bound for Yakima, as mentioned above, will you do your best to find a BNSF car (Or the eqivalent for your era.) to ship it in? Any thoughts on this? I know it's been covered in Model Railroader in the past decade a few times, but not much recently. I'm just curious as to what everyone thinks about all this.