Middle of summer, the waters are getting very warm and this is having the fish moving and changing their locations throughout the day. For the fish size, finding the areas that the bigger fish are relating to is that key to the puzzle.
The smaller fish seem to relate to the shallower waters and can be seen as you are walking along the shorelines. But those bigger gills, what may they be relating to since we aren’t visually seeing them with some regularity. http://www.backwoodssportsman.com/articles.html