I'll go with the advise that an online friend of mine has given me, and that is to practice range-development with only the mouthpiece. From there, you can then attach it to your horn, and wail-away purposefully, but for me, I am not going to broadcast my worst stuff...call it vanity, or just the fact that I can play around here without complaints, or riling the dogs. After all, when one can succeed on the 'poochometer' as I do, and I don't have people sending the police to quell my passion, I do my best to always sound decent. Even when I'm working with clearly weird effects, I seems to do well. Just ask the neighborhood dogs about me, 'cuz the never complain!