What’s your vote for the most ridiculous, overpriced, and useless tweak?

Thanks Geoff I know this company and this text confirm that my answer is more  right than wrong  about your question... my best to you...

The trough was there from the origin of the deck and is a great leveller up, I used it with a Rega arm for decades, the platter upgrade wasn’t an upgrade musically but it did make for impressive dynamics, pity it lost the timing in the process. What really bugged me was the poor craftsmanship necessitating the use of sticky tape to bodge it up. 

@mahgister, you the man! Myself, I’m not convinced. Oh, well...

I doubt that you are easily convinced if the idea does not come from you and if you are convinced will you admit it easily? My best Geoffkait to you...

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I’ve been following with interest the Schumann Frequency device ever since Acoustic Revive introduced it all those years ago (12) and even tried a Schumann frequency CD, that produces an audio I.e., acoustic wave in the room of 7.8 Hz through speakers, even computer speakers, if you see what I mean.

But as far as any explanations go, none, including those found on the Acoustic Revive web site and VH Audio web site and attempts by reviewers if they even attempted explanations - which they probably didn’t - do not really explain what’s going on. These “explanation” do not explain why the 7.8 Hz frequency improves the sound. The explanations obviously threw a lot of facts together and hoped it would suffice. Sorry, don’t buy it. That doesn’t make it an explanation.

I’m not implying it doesn’t work. I’m saying no one has explained how the Schumann frequency improves the sound. At least not to my satisfaction. It’s OK that it’s a mystery, isn’t it? Doesn’t the whole world love a mystery? As Bob Dylan says at the end of all his songs, good luck to everyone.