That's a big table. I thought SR debuted earlier, but seem to be mistaken. There was an issue with the black arms on the fd's initially because they looked too similar to SunTour Cyclone and Dura Ace, suggesting a "less desirable" front derailleur. I always assume the black arm means SR. With the similar cage, I assumed that the clamp-on was an SR because I was led to believe that there were early silver armed SR fd's. I'm not sure if there were. This is based on some vague recollection of a conversation with someone several years ago, though.