My largest bulk stop has multiple addresses going to one stop, and everything is under the same hin. The workers have so many deliveries that coming in that they have to sort everything as it is put on the dock or they become hopelessly backed up, so I scan each individual package as I unload it. They are really cool though, and will work with me on missed scans. They scan the packages into their own system, always going for the 1z, but sometimes missing and hitting the zip code.
If I'm missing something I check my count against theirs. If that is off, they print out their scan report and I check that. If I see the tracking number on there, I do a "find barcode" and then stop complete. More often than not the package is either on the wrong truck, or loaded some random place on my car. Every once in a while I will miss a package. Sometimes when I do, I think it's because it's a package for another address that goes to this warehouse, and when it asks if I'm sure I want to add it, my fat fingers hit the "no" key on accident.