I will try to find info that was passed on to me and post later.. but in a nutshell.. the " latest" seems to be:
multiple sharp metal points at all corners and the mast providing umbrella coverage of the top structures of the boat, all tied together by heavy ground strap lead down to the waterline to multiple water contact points at the waterline.. not deep under water.
I have been at sea and watched lightening hit the water around me and at anchor and had the same experience.. while the boat being the tallest thing for miles.. no matter how much I am around it lightening still scares that crap out of me!
here is some interesting reading.
Marine Lightning Protection Inc.
HOLLYWOOD