Dave,
around here i notice that bass seem to be smaller in smaller lakes and a bit larger in larger lakes. I have never seen a large population of stunted 15 inch bass in a 3 acre pond. I would expect to see fish in the 11-13 inch range. the lake I took those larger bass from was 88 acres. I have never shocked to for more than a few hours because I remove them and dont have enough room on the truck to haul more than a few hundered pounds. that place it stunted out like crazy, its no problem to catch 200 pounds of bass every time you put the boat in the water. The problem is during the same shocking survey we saw 35 bream. the bass are living off their own spawn.