Not sure what you've read on commercial lighting protection for towers and transmitter buildings??
The method used for that appears to be VERY bullet proof.
IF you could possibly implement it, and you have a high lighting strike event probability,
it would be an excellent approach.
Briefly, it's a grounded ring of heavy wire around the building, and specific connection(s) to that
from the building and electric service.
I think your idea will help with close hits, but not any like a direct or nearly direct hit.
Having said that, no I don't have such a system here.
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