The V, VI, and XI were designed with rubber / clear soles for the purpose of getting them to stick better on hardwood floor when MJ played. I was watching a performance review of the '11 Concords the other day on YouTube, and dude said that they still stick like glue on clean hardwood.
I get what you're saying, though. Rubber / same material just not clear.. IMO that would drive away from their original concept that they had. Didn't the "Blackout" XIs have what you're talking about? Did you mean replacing all the clear soles w/ that color?