I put on all Limbsaver products: X-coil, Super Quads, and string decelerator. I am getting a vibration noise when the string hits the decelerator. I am gently popping the string to listen for the sound, and it is at the decelerator. It is quieter when I pop the string without the string decelerator. Does this sound like I need string leeches? Does anyone shoot without a string decelerator? Pros/Cons???