We definitely are culling. I have been fishing with larger plastic lizards. How long are the water dogs? I have a couple of avid fishermen that work for me and they are convinced the bigger fish are there just in really heavy cover and that I don't fish for them. My point is I can go to our other lake and catch bigger fish almost immediately even though it is not suppose to be near the same lake. We are starting to wonder if the F1's are tougher to catch than the natives that are in the old pond.