This lake holds LOTS of overnight ducks.  I set up in the southwest corner and by 7am I had my limit with 9 shots as the ducks came off the east side of the lake and headed west.  I went ahead and hung around for awhile since my wife and kid would still be sleeping to see what would happen.  Around 8:30am, some small flights starting coming back (2-7 per pack).  I went ahead and picked up and came home.  Well worth the drive.
As a side note, although I only fired 9 shots, I picked up over 20 shells.  Please remember to police up after yourself, and any other shells you see laying around.