Hi,
I want to install a vertical, fed with an SGC230 at the bottom, but
concerned about minimising chance of a lightning strike on a bare
conductor.

Would it give more protection / solve the problem, if I encased it
in a fibreglass yacht mast which I happen to have ?

I plan it to be approx 40' high with the top 25' being a fibreglass
yacht mast with the wire running up the inside. Top would be
insulated / sealed so no ions could spray out, attracting a strike
.... am I going the right way ?

Thanks,
Nick