Once you figure it out you will wonder how you couldnt do it before. And if you want some good advice....practice, practice, practice! Remember that in the field no calling is better than poor calling. Make sure you can at least HONK consistently before calling at birds. Also you have to remember that most calling instructional cd's and dvd's are geared towards contest calling sounds. Go listen to real birds and try to mimic those sounds. In the field being able to make 30 or 35 different types of calls usually wont matter. Yes it is good to be able to master them, it feels good to accomplish them. However on a day to day, day in, day out basis if you can cluck, moan and honk you are going to kill birds! Plain and simple! I have hunted in the past with Stahl, MacDonald and a few other pros and I can tell you this, how they call and the sound that comes from the call sounds nothing like how they call on stage.