In my previous deleted thread most posters declared that these could not possibly have any effect other than imaginary. My contention was that perhaps we should keep an open mind.
I should point out that, at the time, no one posting had any experience with these whatever so all postings were "a priori" opinion, some of which were quite vociferous (or should I say, down right nasty?). So nasty in fact that Audiogon shut it down.