I bought a used bow a couple of years ago and it has a 2 prong style rest on it. I like the rest but have one problem with it, when I draw back it makes a screaching sound. The prongs look like they have been wraped with monofiliment or mabey even serving, I think the last owner of the bow may have done this him/herself. Would it help if I installed some of that shrink wrap tubing, or mabey paint them whith fingernail polish like I saw in another post? Or do I need to get a new rest? Oh, if it matters I use aluminum arrows.