ORIGINAL: GordonGekko
Haydel's DR-85...once you can make a quack work on your cadence.... then if you want add versatility switch to a single reed (but that ole DR-85 will kill a ton of ducks)....
x2
Just remember that too slow with your cadence is better than too fast. Each quack is an individual note, and on greeting calls you need to drop down an octave or so on each note. Don't run them all together!
FWIW, I probably have close to $1000 worth of duck calls, and my DR-85 is still on my lanyard at all times during the waterfowl season, its a great call for me in small pockets and on still mornings when the ducks are being a bit shy.