Please keep us posted with your results.
In my older/lower pond, besides the bluegill (which are the majority), I have a limited number of LMB and black crappie that come up for pellets, along with my white catfish, channel catfish, grass carp, and my buddy Koi George -- a morbidly obese orange and black koi.
But, I never see the RES. I catch a few each season, and I see monstrous RES spawning each May. I just don't know what happens to them after that, or how many may be in the pond.