How did everyone learn to use a mouth call? I have experimented with many different calls and still cant seem to figure it out.
Try playing songs with it. Like the theme to A-team or Jeopardy or dixie. Seriously, sometimes it isn't about sounding like a turkey but learning what the call does or doesn't do.
I would suggest getting a cheap (very cheap) single and really getting comfortable. Then you'll sound better in a 2.5 or 3.5 or 4.