Steve,
I don't think the hobie comptip was for lightening. It was a response, to a few frivolous lawsuits, b/c people hit their masts on Powerlines, and a few died.
I say frivolous, b/c, it is the operators responsibility not to hit powerlines with you mast. My Nacra, has an aluminum mast. If I hit a powerline with it, it's not PC's fault.