Good news! I spent some time on my dock a few evening the past week and am now seeing bluegill activity when the feeder runs or when I throw out food. They tend to be 3-5 inches long which makes me think they are the 1"ers that I stocked last August or September. This also leads me to believe that I probably have some 6-8 inchers lurking around as there were several dozen 3" bluegill I put in last summer as well.

I'm catching fewer bullhead in my trap than when I started so I've evidently put a dent in their population. I also found a school of 1/4" bullhead last week and was able to net about half of them out. Hopefully the bass take care of the rest.