Hi Greg, I’m really enjoying the course. I have a question regarding lip buzzing. I can lip buzz fairly easily when I simply bring my chops together by closing them. However, when I do it in the manner you suggest by using my fingers and relaxing the center of my chops my lips simply collapse outward into a pucker in the center and seem to get distorted. Is this something I should bother to worry about? I just want to explore some things to get more consistency in my playing and my upper register development. Thanks!