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

I cannot post photo here alas! But I put a link... Just a word saying that I have added 1 very small tourmaline stone like 1 gram maximum to a little shungite and Herkimer to the center of the schumann resonator... That make a big difference in the rendering of a more natural musical timbre ... These stones glued together are linked by a thin copper cable to the grid stones of my audio system and changing one is like changing the tube in an amplifier...Then there is at first sight tweaks that seems ridiculous but are efficient in a way that undermines many upgrading buying gear...

a link to it :
http://i68.tinypic.com/t6auk1.jpg


The black stone at the basis is a piece of shungite, the transparent crystal is an Herkimer diamond and next to it a very small red tourmaline chunk... The addition of the tourmaline push that to a more higher level...The tweaked schumann resonator with stones is amazing upgrade...cost are very low...

Power to the Pebble! ✊ Maybe you should try two Schumann frequency devices. 😬

I have already read your brain and order already another  one...thanks Geoff

I have never had luck with timber. Timbre heard after hitting it while riding a bicycle was anything but pleasant. It resonated for a while. Pebbles yielded similarly unpleasant result.

Geoff I improve another times and on another level the schumann generator, first improvement is with 3 stones, second improvement connected with a thin copper cable to my stones grid these 3 stones on the center spot of the S.G.
Third improvement, and not the least, I glued a copper antenna (3 inches) on top of the 3 stones, the gain in clarity is amazing....I am totally flabbergast by the S. G. and these 3 upgrade I have improvised...

Your quizz about antenna and wavelength inspire me... thanks Geoffkait.