Okay, okay...this will be my last two-cents on this...you can show me all kinds of specs and recommendations, and say how "in theory" these work (and they will work in a very specific and narrow window of lightning surge). But the "real world" data is not there...it is anecdotal at best because every situation is different.
So you either believe...or you don't! Sort of like the "wind chill" and frozen pipes thing! *L*