I have been cow calling with diaphrams for several years, but have been using a Power Bugle for my bull sounds. I have found that my cow calls are convincing, but my bull sounds are not nearly so (at least that's what the elk tell me). I just bought the Elknut Chuckler package (on the advice of about 100 people on this site). Now I wish I had bought it last spring so I had more time to practice before the season starts. Like I said, I am fairly proficient at cow calling with one, but the bull sounds are still kicking my butt. One nice thing about Elknut's stuff is that they come with the instructional DVD.
Practice, practice, practice....
