BG stunting and no LMB reproduction are symptoms of the same situation. That is why many stocking suggestions warn of letting the BG and other forage get to far out in front of the predators. Stocking is not the same in all areas of the country and the more species you use the more difficult it is to manage the situation.

Note its not just BG/sunfish that can create this result. Tilapia have also been noted to cause the same result and probably other species could as well.