I use a 12ga ugartechea choked cyl and IC. Bismuth early season and hw13 late season. This will be the first season to use hw13 in it. I may even shoot it with #6 steel for teal season.
Cylinder for the birds about to land, IC for the birds on the way out after the first shot.
Thought for the day: Ducks were almost hunted to extinction long before camo was invented.