I quoted my rubber insert by adding more double sided tab to hold it more securely inside the hood. My 7 arrow Tightspot rubber insert rattled and vibrated at the shot, a long strip of Scotch heavy duty double sided tape on the front and back and a small piece on each side holds it really secure now. After that, I tensioned the grippers with their respective screws to make sure the arrows are held tight inside the holes of the rubber insert. After that, it was just as quiet as the foam I had on my 5 arrow Tightspot.