Was helping my son sight in Onza and noticed a nasty high pitched noise when he shot it. Checked the fasteners and everything was tight, rest was timed good as well as the cams. Put a different cable slide on the bow which changed the sound slightly, so I put a TunerZ cable slide stop on the cable rod and the bow is whisper quite. Of all of the crap that I put on that bow to make it quite from monster jacks, stabilizer, and string jacks -- by far the most effective has been the cable slide stop. I put one on my Alien Z also which also made it a little more quite. They were $12 for a two pack at a local shop. Isn't it amazing how many little gizmos it takes to tweak these toys? Here is a picture of the stops if you are interested.