I don't know about the monoculture pond, but I've caught 10" BG on a 2 1/2" long imitation BG crankbait. I believe BG are more piscivorous than many people realize.
Just last week I put 14# of FHM in a BG/PS only pond, along with 50 4" LMB. The BG were chasing the FHM just like bass will, herding them to the shallows, and busting them on the surface.