That was the councils biggest concern as well, another option would to keep Padawan and Knight normal but abbreviate the sub rank so it would be Padawan L for Lerner. I know they did this before we got the roman numerals in, and this way you can still understand what rank it is other than trying to figure out the number. Also I'm open to other suggestions because right now my main concern is the numbered ranks interfering with the Temple Guard names since there are two back to back roman numerals.