Those are options, but not what would fall under custom stuff. Like when you order something from the P90 range in humbucker housing which is not officially listed as possible and you gotta order it as a MQ.
The check marks are always by hand, both the check and the resistance reading.
Might just be an error, things that can happen when actual humans do the work. Good thing is that any issue gets cleaned up by good people as well, so I would wait for a BKP answer and then see what is the matter. If something went wrong I am positive that they will fix it asap. If I ever had an issue with anything I wish it to be with BKP, cause then I would not really have to worry. =)
So wait and rest easy. Worst thing is additional wait time which, while harsh, could be a lot worse in other places. And even that is forgotten when the things are fitted...trust me.