Rainman I don't disagree with your thoughts. It all comes down to pond management. Add something here and take away something there and get different results.
With the pond experiment with the fish combo I mentioned I had shallow pond, with weeds, but later became weedless because of the 18 grass carp. I had less clarity but exceptable. I had a sand beach and I swam and dove in the pond. My biggest worry was the carp overtaking the pond, KOI & Israeli but with the large mouth bass I never had any young survive and in the end of many years with this pond I still had 20 KOI and 6 Israeli and no more.
I had good sports fishing with my bass. I filed the barbs off my hooks so I could hook them but then they they could escape. Fun.