I've never thought of the noise from the arrow but I too have stood about half way down range and heard what you are talking about. I didn't hear it the whole way though. Just within the few feet before during and after it passed me. The plastic fletchings may have something to do with it but I don't think you are going to do to much about it nor do I think you should worry too much about it. Maybe someone else knows more or has read an article about it. I can't believe I've never read an article in any magazine about this. Very good point. I'd like to hear other opinions on this.