I did not reconize the STS name. Is this the system that has the dampners mounted on the backsiude of the string to stop the viberation. IF it is, I have heard of one such model that did work, but only for a short while. The pads actually wore though quite quickly and then caused more noise then if it was not even there. I was told that it was even tested by a sound measuring device. It did work very well at the beginning.

Most people know how I feel on this, making your bow quieter. Even if you can make the bow totally quiet, the arrow is still loud in flight. It is actually louder then the bow being shot, so I would not give up speed of the arrow to quiet the bow. Just my opinion.