They'll bed even deeper given the circumstances--some pics were posted near 18' or so. I never knew them to do it until getting my Garmin two years ago. Huge areas of beds. You can learn a lot with these units, especially those that put in the time to do so. I've found them at 10-13 fow here. Have to be gills as there are no shell-crackers in one of the lakes, and gills are predominant in the other one. One lake is fairly clear, the other not so much. Max depth I have found bed areas is about the same tho.