Originally Posted by pstock

so, am I understanding this table correctly, that a 9S Campy shifter is more compatible with a Shimano 7S cassette than an 8S Shimano shifter?
if so, that I expect would explain why it had a 9S Campy shifter in the first place.

Of course, if that is the case then I have also made a muddle of things by assuming (wrongly) that the 3x and 9S Campy shifters were just some aberration that a Campy lover tossed onto the thing, that that I should swap them out for Shimano.