No offense to anyone on the board, but lightning is so powerful and so random that only luck will protect your beachcat.

Just drop you mast if you see bad weather. If you are out sailing in bad weather... well you are just asking for trouble. CompTips, condoms, big grounding poles aren't going to help. If lightning hits your boat, something is going to get damaged. Just feel good that you weren't around when it happened.

My insurance covers "acts of "god". I say if there is a "god" and it wasn't to make my mast glow in the dark, it can have it.