Sorry coudnt help myself I had one and just didnt like it maybe I didnt give it enough time.I put those nap teflon prong implants on it put them in warm water and slid them on over the toatley diferent shaped prongs then they advertised when I ordered the rest on both the wammy site and catolog I bought it from.In my eyes if you reshape the prongs radicly it is a different rest.