I agree with the above posts. The confusion was even worse until they removed that pesky "s" at the end of feeder(s).

AFAIK, the CMP responsible for this always felt that the feeder was meant to carry the entire load and table 310.15(B)(6) has probably led to a lot of bad language & a few fistfights.

Few things are harder to put up with than the annoyance of a good example.