What lures are you catching your bass on chad? I have a 4.5 acre pond that is about 20 years old and is in the same situation as yours. You should have some good sized bluegill in there. I know I do. Reason I ask is that I am trying to cull heavy on the bass like you are, but they are getting tougher to catch on my usual go to technique (weightless zoom trick worm), and due to all the bladderwort in my pond, spinnerbait fishing is frustrating as all get out.