Yes I would agree that this female here has a ton of ZZ traits here with a few of Kamfa or GM showing here. As far as old school vs modern, I would set it as modern here since old school is definitely not like that at all.
Spot on, They have to class them on the most dominant traits, visual classing is the only way possible as we cannot DNA test every fish, and that would be pointless anyway, as its the visual aspect of the fish that we are interested in, not the genetic..