how do u guys practice either callin ducks or geese? i bought the duckology 101 and now that i know how to call i want to practice, because my ole coach always said practice makes perfect. well i have about an half hour drive from work every day and i play around with my calls during then but i want to listen to ducks so i can mimic (sp?) them. do u guys download ducks then just replay them over and over or what do u guys do? just want some ideas because i dont want to start playin around and get the wrong cadence and screw my calling up. the duck commander cd is great but that can only take me so far. thanks. peter b.