His website is a good place to look (under some definition of good of course):Where do you sit with all the above? It's not one of his theories I'd any knowledge of. Uncrossing of legs while listening and wearing a certain material of socks or somesuch was the extent of my reading up, plus the hearsay that got around over the decades. Maybe a PWB thread could enlighten us further. Goodness knows, there may even have been just the one idea that actually worked.
https://pwbelectronics.co.uk/