Geeze Jim, we're ignoring you. Sorry.
Grounding is close to witchcraft. Hey, I said 'close'. Anyway, you want the mast grounded to something under the waterline. Move those ground cables to a through-hull (metal) if you have no choice. I installed a bronze ground plate aft for the Ham radio. It's batting a thousand.By grounding the mast, you are bleeding off the charge known as St Elmo's Fire. It's also known as the return path the bolt follows to hit/kill. No return path, no strike. Of course, there's the group of experts that will say masts are grounded to lead the strike to the water. My experience is in total agreement with the former.
Grounding is close to witchcraft. Hey, I said 'close'. Anyway, you want the mast grounded to something under the waterline. Move those ground cables to a through-hull (metal) if you have no choice. I installed a bronze ground plate aft for the Ham radio. It's batting a thousand.By grounding the mast, you are bleeding off the charge known as St Elmo's Fire. It's also known as the return path the bolt follows to hit/kill. No return path, no strike. Of course, there's the group of experts that will say masts are grounded to lead the strike to the water. My experience is in total agreement with the former.