Several situations could explain the abundance of large bgill in the club pond. One thing for sure the group of large bgill will not exist as it is for much longer than 2 to 3 years. After that they will start droping out due to old age. So unless conditions that created them (community structure or balance) are still present, then the group of large sized bgill will dissappear. Removing a bunch of these fish could jeprodize the condtions which created it.
If numerous snags and quite a bit of dense cover is present then I doubt that the large bgill are eating almost all the bgill eggs/fry.
If catch an release is practiced by many of the club's bass fishermen then I suspect that a good number of medium sized, hook smart bass 13" -19" and or large cats are cropping the intermediate bgill. If heavy harvest of bass occurs and cover is minimal then your theory of bgill preying on eggs/fry is plasuable.
