ORIGINAL: luke/r
Therages I bought last year also make noise. The practice head and the broadheads them self. I can't explain it but they are definitly loud in flight. I have tried them on my GT arrows and my CX arrows. I have to say even though they make noise they seem to be a good head.
The same arrows, I shoot with a practice tip, no sound, then put the rage practice tip on and I can hear it cutting the air, I believe it is the holes cut out of the blades, like blowing over the end of a pop bottle. Shot this AM with a buddy and he couldn't hear it so maybe I'm making a deal out of nothing but for me it's like night and day.