The diaphram just takes time, I would suggest getting a cd with the various call on it and listen and try to mimick what you hear. THe KNight and Hale calls with the yellow laytex work best for me. The are extremely raspy. One thing to remember is that no two turkeys sound the ssame so if you sound different it is fine. The main thing about Turkey calling is rythm. Get the rythm down... Good luck