I have been goose hunting for 2 seasons, I've come along way with everything from setting decoys, flagging, how the birds work dekes, and my calling. I have never mastered the double cluck yet, I have even bought knight and hale's double cluck plus hoping the inhale exhale would do it, needless to say i was very displeased with the call, anyway if anybody could give me tips on how to double cluck please let me know. Thanks!