Barry, I took to it pretty quick. I felt good enough within about two weeks.....but Im phsyco when I want to learn a new call and I was probably running it on and off for about 5 hours a day.
The good news is, once you finally train yourself how to run it, it comes easy. Sometimes it is the trumpet and not the user. Some run easier than others. Brians are very easy to run, so is Crawdad.