Yellow Perch, Bluegill, Hybrid Bluegill, for sure. Maybe HSB and SMB too along with a few golden shiners. He has a self sustaining population of GSH in his pond. His Hybrid Crappie are growing great, I think some are close to 16"-17". This should be year 3 or 4 for them in the pond, I have to check my stocking records to be sure.
He feeds about 1/2 pallet of Optimal a year in a 4 ac pond. He's got RES over 12" and over 2#, BG and HBG at 10 3/4" and 1.75# (we electroshocked that pond 6-27 last year).