Here in Northern Michigan we actually get some of our largest gills in the middle of summer. We are usually searching deep water structure such as humps with weeds or weed beds in the 10 - 20 feet range. Often we find them suspended in 20 feet plus open water. Our bait of choice is usually a live leech or leaf worm on a tear drop, or a micro jig and various soft plastics. A lot of our waters can be extremely clear so light line and a very subtle approach is a must. In our stained impoundments we use 6 - 8 pound line and larger jigs or live bait so that it is easier for the fish to find.