Maybe it would be interesting for the larger size categories and GC, but it wouldn't make sense for all sizes. Males acually have an advantage in the smaller sizes because they finish earlier. Also sex is difficult to determine in small fish.
I do like the Male GC idea because every once in a while you get to see a fish like this one that's truely impressive (regardless of gender). It shows the great potential that large males can achieve and inspires us to something.
-Dan
