depends what you are hunting and where in my opinion. when i hunt public i like to get away from mallards and throw some gaddy's and pinny's on the outside. i honestly believe the white on the penny's help catch the attention of passing ducks and most the people i see on public are throwing mainly mallets so i like having something different. thow some widgeons as well. all mallets will work but on public i think throwing something different helps out. private ground throw whatever. i have heard the duck parks can be hunted well with coot decs also but just can't pay money for a coot decoy.