For a week or so now, I've been losing stations on my 9'. Went out today and found the problem, bees nest in the LNB, a C1WPLL. It has a plastic cover on it, but a bee still made a nest in it. The center hole in the cover looks big enough for a bee to fit through, the other holes look to small. Can I just fill that center hole with silicone and keep the bees out?