My plastic one flew out in my Sabre FTD. It was mostly friction fit, but I put a little bead of clear silicone on the underside of the lip to help hold it in place…2011 Sabre FTD w/ Mercury 150 Pro XS, Power Pole Sportsman 2s, Humminbird 898 w/ 360 and 858 at bow, 898 at ConsoleFor lots of BCB love, follow me on instagram: @professorbeard