ARE YOU KIDDEN MEthe sts is the best accesory on both my bows,like he said,take your string silencers off you don`t need them any more,for short a/a bows its a must have,you`ll never have arm slap (or camo slap)unless youre shooting wrong,when the string gets to that point its done powering the arrow,all it does after that is throw the arrow of of its flight path,if you watch a shot in super slow mo. the string goes crazy flopping around after the point where your string orrigianally sits,it really cuts down on bow jump,hand shock,and noise.I WILL NEVER OWN A BOW WITHOUT AN STS