I went exploring for good metro sunfish lakes. Living in the metro area, trophy sunfish is not something you will come across. I've never targeted sunfish specifically, especially bluegills. But there are a few lakes currently capable of producing a limit of 8" for those who wish to keep some. I didn't start my sunfish exploring until mid July. Was kinda preoccupied with other things(bass tournaments).
A few years ago on one of the tournament lakes I fished, I came across some deep beds, I mean near hundreds of them in 9'-12' of water. I didn't give it much thought at the time. Thinking back, I decided to check it out. Armed with an ultra lite set up I went sunfish hunting. Rigged with a small 1/16th oz jig tipped with a gulp worn, I positioned myself on the edge of this massive bed flat as seen on my 360 sonar, I casted it out to the middle of it. I let it sink and as soon as it hits bottom or I think it did. The line twitched, I set back and tell first bluegill was a nice 8.25". Through out the days, I landed 50+ bluegills ranging from 7" to almost 9" in just this one spot. This all in mid July. This was just one of many deepwater beds I found with my SI. More future bluegill fishing is in the work for spring next year.
2nd lake I went too I targeted shallow rocky flats with sparse weeds. Moving around with my trolling I finally came across some beds on a long shallow point as seen on my 360. These beds were in 3'-4' of water and dotted this point for 70' long. Rigged with the same set up I used in my previous lake. I cast to the center of the bed flat. And picked up a few here and there. Not any real hot action on the beds and sizes was 7" avg. I casted to the sharper drop off the side of the point. And picked up a nice 8.5". Didn't pick up any good pattern all day. But majority of the good bites was not from the beds but from the edges of the beds and edges of any scattered weeds. Overall, caught 40+ sunfishes that range 7"-8.5". Of course there's a lot of 6" range sunfishes caught as well on top of that 40+ 7"-8.5".