there has been tons of work done crossing all differnet types of sunfish. try searching at the science library at any university. if my memory serves me, I found alot from the University of Illionis most was old stuff from the 1960's but its good info. There are certain fish farmers around here that claim to have "invented" the Georgia Giant but I found papers to the contrary. that cross was developed and researched long before said "fish farmer" was in business.
