I think you will find, they will be back there too. I've seen guys way back in the brush fishing for big shellcrackers. I have to think bluegill and shellcracker get out in the open more because the water is a little warmer because there are no trees. I agree about catching crappie right on top of a drop especially early and late in the day. It may seem to be barren water but about 30 minutes before dark, they move up and it's on until dark.